7Baggers
Quarterly
Annual
    Unit: USD2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2019-12-31 2019-06-30 2019-03-31 2018-09-30 2018-06-30 2017-12-31 2017-09-30 2017-03-31 2016-06-30 2016-03-31 2015-09-30 2015-06-30 2014-12-31 2014-09-30 2014-03-31 2013-06-30 2013-03-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 2011-03-31 2010-06-30 2010-03-31 2009-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2003-03-31 2002-12-31 
      
    		                                                         
      assets
    		                                                         
      current assets:
    		                                                         
      cash and cash equivalents
    		510,463,000 230,865,000 153,273,000 110,671,000 226,951,000 271,855,000 229,122,000 275,128,000 424,952,000 481,212,000 490,561,000 714,597,000 1,248,480,000 987,865,000 509,639,000 537,002,000 592,520,000 373,056,000 341,304,000 365,100,000 346,041,000 333,791,000 190,953,000 348,049,000 466,789,000 355,467,000 388,913,000 345,174,000 344,782,000 264,087,000 328,255,000 334,991,000 477,588,000 438,221,000 433,485,000 446,557,000 376,020,000 286,846,000 303,497,000 323,691,000 276,235,000 232,236,000 288,160,000 237,232,000 246,434,000 211,371,000 182,686,000 96,335,000 110,415,000 104,518,000 117,005,000 66,852,000 162,487,000 172,542,000 153,656,000 30,600,000 71,908,000 
      restricted cash
    		17,250,000 17,250,000 17,250,000 17,250,000 17,860,000 17,648,000 17,498,000 17,352,000 17,268,000 17,253,000 17,267,000 31,822,000 31,820,000 31,817,000        1,000,000 1,000,000 1,000,000 1,000,000 5,000,000 5,000,000 5,000,000 5,000,000 6,566,000 6,566,000 20,379,000 5,621,000 5,000,000 5,000,000 5,000,000 5,229,000 35,246,000 5,226,000 5,225,000 36,555,000 32,632,000 29,843,000 31,921,000 34,653,000 34,730,000 56,085,000 41,901,000 47,823,000 49,132,000 39,852,000 53,719,000 71,021,000 76,835,000 70,804,000 36,913,000 23,202,000 
      short-term investments
    		745,609,000 666,432,000 755,224,000 1,023,534,000 1,083,865,000 1,111,082,000 1,147,193,000 1,152,711,000 1,117,417,000 1,162,895,000 1,241,752,000 1,279,953,000 933,099,000 889,962,000 354,782,000 442,106,000 168,410,000 245,599,000 198,146,000 166,817,000 245,307,000 259,313,000 269,297,000 270,697,000 273,700,000 266,345,000 280,155,000 265,437,000 261,281,000 260,121,000 253,300,000 143,702,000         38,096,000 77,482,000 14,752,000 45,353,000 1,553,000 13,450,000 8,185,000 3,938,000 57,017,000 48,330,000 13,660,000       
      accounts receivable
    		110,835,000 99,117,000 105,858,000 97,283,000 94,896,000 99,880,000 113,862,000 87,417,000 89,256,000 91,135,000 92,888,000 55,041,000 63,829,000 57,887,000 67,527,000 30,106,000 28,467,000 97,380,000 109,726,000 110,658,000 126,534,000 111,493,000 140,279,000 118,622,000 104,485,000 93,432,000 79,757,000 80,682,000 83,871,000 80,737,000 82,902,000 97,715,000 97,577,000 99,950,000 107,704,000 96,709,000 112,946,000 77,339,000 79,279,000 95,598,000 43,664,000 48,996,000 53,025,000 38,792,000 45,489,000 45,363,000 56,306,000 55,122,000 42,761,000 50,159,000 50,285,000 39,304,000 35,729,000 36,373,000 38,986,000 31,697,000 28,093,000 
      income taxes receivable
    		2,719,000 642,000 669,000 1,660,000 1,666,000 3,382,000 70,204,000 70,233,000 69,980,000 72,792,000 71,201,000 94,543,000 94,508,000 94,724,000 95,002,000 67,758,000 92,365,000 64,192,000                                        
      spare parts and supplies
    		70,627,000 65,444,000 60,115,000 53,817,000 47,837,000 38,905,000 36,875,000 37,163,000 39,065,000 35,923,000 34,109,000 35,116,000 35,439,000 36,014,000 35,442,000 36,621,000 35,660,000 37,630,000 35,897,000 36,461,000 32,646,000 36,387,000 35,361,000 26,560,000 18,622,000 18,150,000 19,803,000 20,359,000 20,399,000 18,011,000 20,287,000 17,400,000 18,520,000 25,067,000 21,840,000 21,293,000 27,262,000 25,549,000 22,639,000 20,076,000 17,129,000 18,417,000 16,265,000 15,555,000 16,323,000 20,084,000 19,537,000 15,145,000 13,346,000 14,406,000 13,252,000 15,462,000 14,623,000 14,022,000 14,503,000 5,140,000 4,408,000 
      prepaid expenses and other
    		79,403,000 80,304,000 78,551,000 91,754,000 72,185,000 83,021,000 63,553,000 85,544,000 75,091,000 60,305,000 66,127,000 77,489,000 74,893,000 74,340,000 56,086,000 54,918,000 45,431,000 56,849,000 53,279,000 60,553,000 95,292,000 99,315,000 65,196,000 56,783,000 49,443,000 53,788,000 37,508,000 53,013,000 48,051,000 53,382,000 47,677,000 32,551,000 46,108,000 39,270,000 40,669,000 36,811,000 41,378,000 38,575,000 59,094,000 51,420,000 23,147,000 25,751,000 24,509,000 27,971,000 19,508,000 19,321,000 35,150,000 27,105,000 22,924,000 27,593,000 25,314,000 19,120,000 26,881,000 24,864,000 21,515,000 15,256,000 13,273,000 
      total
    		1,536,906,000 1,160,054,000 1,170,940,000 1,395,969,000 1,545,260,000 1,625,773,000 1,678,307,000 1,725,548,000 1,833,029,000 1,921,515,000 2,013,905,000 2,288,561,000 2,482,068,000 2,172,609,000 1,118,478,000 1,168,511,000 962,853,000 874,706,000 738,352,000 739,589,000 845,820,000 841,299,000 702,086,000 821,711,000 914,039,000 792,182,000 811,136,000 791,767,000 786,041,000 704,847,000 756,312,000 664,063,000 665,691,000 625,183,000 626,204,000 621,706,000 578,171,000 480,690,000 488,184,000 514,459,000 455,743,000 458,002,000 426,554,000 396,824,000 363,960,000 344,319,000 357,949,000 239,546,000 314,896,000 311,926,000 277,444,000 259,696,000 321,803,000 335,628,000 309,624,000  73,753,000 
      property and equipment, less accumulated depreciation and amortization of 1,192,373 and 1,150,529 as of june 30, 2024 and december 31, 2023, respectively
    		2,199,989,000                                                         
      other assets:
    		                                                         
      assets held-for-sale
    		1,072,000 1,091,000  2,813,000 2,845,000 5,024,000  15,897,000 22,566,000                                                 
      operating lease right-of-use assets
    		371,519,000 393,769,000 413,237,000 423,706,000 425,069,000 439,228,000 459,128,000 477,169,000 497,214,000 516,355,000 536,154,000 554,850,000 582,040,000 604,766,000 627,359,000 647,288,000 592,933,000 632,545,000 601,966,000 613,103,000                                      
      long-term prepayments and other
    		119,771,000 118,057,000 121,097,000 117,716,000 106,399,000 106,136,000 100,317,000 91,333,000 92,990,000 76,753,000 80,489,000 99,651,000 107,157,000 118,890,000 133,663,000 146,619,000 159,383,000 182,438,000 150,952,000 171,013,000 187,860,000 183,276,000 193,632,000 124,926,000 126,231,000 69,792,000 70,603,000 90,108,000 95,299,000 96,225,000 99,323,000 94,117,000 86,007,000 66,172,000 57,300,000 56,601,000 49,695,000 45,946,000 41,888,000 40,838,000 32,589,000 34,218,000 32,927,000 35,171,000 54,402,000 48,598,000 47,276,000 42,422,000 38,710,000 36,163,000 35,179,000 31,454,000 27,892,000 39,816,000 98,866,000 41,884,000 41,277,000 
      intangible assets
    		13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000 13,500,000     15,187,000       21,300,000                            
      total assets
    		4,242,757,000 3,790,913,000 3,733,525,000 3,923,260,000 4,059,850,000 4,127,458,000 4,139,623,000 4,211,118,000 4,365,014,000 4,488,162,000 4,631,120,000 4,969,274,000 5,216,136,000 4,972,899,000 3,978,030,000 4,097,136,000 3,996,495,000 4,126,624,000 3,768,183,000 3,754,114,000 3,270,955,000 3,232,861,000 2,859,831,000 2,822,693,000 2,842,159,000 2,561,337,000 2,570,015,000 2,625,791,000 2,615,916,000 2,602,528,000 2,615,236,000 2,372,576,000 2,135,391,000 1,945,655,000 1,853,000,000 1,859,679,000 1,669,083,000 1,371,518,000 1,381,277,000 1,206,763,000 1,057,238,000 1,057,974,000 1,004,412,000 981,630,000 973,710,000 943,194,000 953,106,000 839,279,000 877,818,000 870,998,000 839,902,000 819,953,000 732,935,000 751,355,000 785,994,000 236,257,000 256,166,000 
      liabilities and shareholders’ equity
    		                                                         
      current liabilities:
    		                                                         
      accounts payable
    		200,837,000 214,848,000 199,223,000 198,007,000 180,287,000 202,864,000 196,009,000 147,052,000 148,583,000 129,832,000 114,400,000 131,341,000 109,058,000 117,288,000 112,002,000 96,160,000 101,641,000 148,748,000 150,131,000 145,067,000 141,209,000 153,262,000 140,805,000 118,810,000 124,260,000 114,396,000 111,596,000 101,863,000 103,618,000 97,260,000 78,350,000 91,687,000 85,245,000 97,550,000 81,008,000 84,937,000 81,541,000 73,145,000 86,802,000 76,007,000 48,767,000 56,050,000 45,750,000 37,142,000 43,935,000 38,875,000 51,782,000 49,650,000 44,892,000 53,387,000 45,995,000 51,918,000 38,926,000 39,983,000 35,867,000 24,322,000 79,682,000 
      air traffic liability and current frequent flyer deferred revenue
    		793,010,000 757,855,000 633,345,000 699,085,000 795,530,000 746,467,000 590,796,000 699,802,000 783,732,000 760,783,000 631,157,000 721,446,000 823,074,000 687,323,000 533,702,000 515,424,000 553,554,000 606,684,000 698,169,000 691,010,000                                      
      other accrued liabilities
    		172,735,000 165,430,000 175,591,000 175,992,000 177,394,000 186,911,000 182,036,000 173,966,000 166,839,000 157,687,000 165,050,000 150,276,000 256,342,000 145,701,000 140,081,000 132,734,000 221,881,000 161,430,000 164,034,000 130,746,000 136,820,000 144,003,000 146,283,000 157,760,000 176,900,000 121,775,000 146,441,000 139,827,000 122,629,000 141,919,000 114,717,000 88,331,000 87,455,000 74,885,000 71,124,000 71,226,000 64,234,000 64,399,000 55,605,000 53,494,000 62,467,000 56,805,000 55,418,000 48,427,000 50,464,000 50,989,000 46,129,000 42,785,000 38,987,000 39,424,000 37,331,000 38,402,000 38,631,000 34,074,000 39,926,000  61,780,000 
      current maturities of long-term debt, less discount
    		131,824,000 75,132,000 43,857,000 42,364,000 44,063,000 46,176,000 47,836,000 45,205,000 46,857,000 60,431,000 97,096,000 119,980,000 141,536,000 142,051,000 115,019,000 114,810,000 60,079,000 53,273,000                                        
      current maturities of finance lease obligations
    		8,883,000 8,791,000 10,053,000 9,998,000 19,828,000 24,819,000 25,789,000 25,886,000 27,137,000 23,607,000 24,149,000 24,219,000 24,004,000 22,545,000 21,290,000 21,618,000 21,667,000 21,857,000                                        
      current maturities of operating leases
    		74,640,000 79,281,000 83,332,000 85,214,000 78,585,000 78,620,000 77,858,000 76,421,000 76,344,000 77,200,000 79,158,000 80,792,000 82,574,000 83,428,000 82,454,000 81,881,000 78,655,000 83,224,000 89,434,000 90,481,000                                      
      long-term debt
    		2,068,129,000 1,612,235,000 1,537,152,000 1,534,877,000 1,552,693,000 1,566,382,000 1,583,889,000 1,574,660,000 1,598,553,000 1,671,092,000 1,704,298,000 1,851,672,000 1,887,541,000 1,863,999,000 1,034,805,000 1,035,971,000 792,766,000 547,254,000                                       883,000 
      other liabilities and deferred credits:
    		                                                         
      noncurrent finance lease obligations
    		54,012,000 56,269,000 60,116,000 62,768,000 65,393,000 69,895,000 75,221,000 80,476,000 85,679,000 95,173,000 100,995,000 106,940,000 112,932,000 115,447,000 120,618,000 126,159,000 131,631,000 141,861,000                                        
      noncurrent operating leases
    		267,103,000 283,836,000 303,119,000 311,647,000 315,654,000 328,370,000 347,726,000 366,137,000 385,463,000 404,378,000 423,293,000 442,093,000 461,822,000 482,140,000 503,376,000 524,172,000 476,401,000 514,685,000 469,543,000 480,979,000                                      
      accumulated pension and other post-retirement benefit obligations
    		144,011,000 142,367,000  143,058,000 142,291,000 141,508,000  152,894,000 154,302,000 155,457,000  211,100,000 211,976,000 212,853,000  223,907,000 200,411,000  181,599,000 180,232,000 169,484,000 218,426,000  234,206,000                                  
      other liabilities and deferred credits
    		83,705,000 78,499,000 77,154,000 71,967,000 57,961,000 74,588,000 94,654,000 78,574,000 76,603,000 77,450,000 78,340,000 81,545,000 83,022,000 79,688,000 78,908,000 78,849,000 80,350,000 97,434,000 100,847,000 107,497,000 280,199,000 257,911,000 95,636,000 172,792,000 171,232,000 100,405,000 96,358,000 84,285,000 81,372,000 72,650,000 70,129,000 57,045,000 42,400,000 42,907,000 35,424,000 30,841,000 30,978,000 31,704,000 33,029,000 55,475,000 47,790,000 48,560,000 52,121,000 52,031,000 67,543,000 62,821,000 62,566,000 61,812,000 61,491,000 61,345,000 60,253,000 59,195,000 65,740,000 63,274,000 60,637,000 26,198,000  
      noncurrent frequent flyer deferred revenue
    		296,336,000 304,099,000 308,502,000 320,657,000 306,046,000 325,407,000 318,369,000 307,443,000 304,798,000 305,575,000 296,484,000 216,184,000 212,326,000 207,610,000 201,239,000 186,618,000 179,740,000 175,218,000 172,343,000 170,149,000                                      
      deferred tax liability
    		53,024,000 52,492,000 65,914,000 88,868,000 100,308,000 102,131,000 130,400,000 135,119,000 134,571,000 147,404,000 186,797,000 204,042,000 199,455,000 200,824,000 216,642,000 241,618,000 271,786,000 289,564,000 170,110,000 170,305,000 188,895,000 135,164,000 174,344,000 218,843,000 167,056,000 141,249,000 140,627,000 117,376,000 81,241,000 41,629,000 78,513,000 36,088,000                          
      commitments and contingencies
    		                                                         
      shareholders’ equity:
    		                                                         
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2024 and december 31, 2023
    		                                                         
      common stock
    		520,000 518,000 518,000 516,000 516,000 515,000 514,000 514,000 514,000 513,000 512,000 512,000 512,000 511,000 481,000 460,000 460,000 461,000 475,000 482,000 500,000 507,000 512,000 525,000 536,000 535,000 536,000 533,000 548,000 545,000 540,000 532,000 521,000 519,000 513,000 513,000 511,000 528,000 528,000 525,000 519,000 516,000 516,000 516,000 516,000 515,000 476,000 473,000 472,000 472,000 466,000 466,000 466,000 466,000 459,000   
      capital in excess of par value
    		296,077,000 294,599,000 293,797,000 292,335,000 289,828,000 287,524,000 287,161,000 273,713,000 271,909,000 270,028,000 269,575,000 267,865,000 265,654,000 261,423,000 188,593,000 144,884,000 143,374,000 135,651,000 130,243,000 128,891,000 127,621,000 125,871,000 126,743,000 73,776,000 121,155,000 125,574,000 119,562,000 116,083,000 154,534,000 251,432,000 277,328,000 272,370,000 267,355,000 266,499,000 263,772,000 262,592,000 261,922,000 259,672,000 258,947,000 257,876,000 241,435,000 241,538,000 239,374,000 238,412,000 237,613,000 236,077,000 215,498,000 214,111,000 212,631,000 212,103,000 211,599,000 210,892,000 209,424,000 208,072,000 213,486,000 60,077,000 59,935,000 
      accumulated loss
    		-324,897,000 -257,303,000                                                        
      accumulated other comprehensive loss
    		-77,192,000 -78,035,000 -79,152,000 -95,537,000 -96,691,000 -97,218,000 -95,166,000 -117,660,000 -118,124,000 -106,476,000 -81,838,000 -114,144,000 -114,434,000 -114,851,000 -114,527,000 -116,299,000 -103,170,000 -103,883,000 -93,087,000 -90,879,000 -67,411,000 -72,511,000 -75,264,000 -81,567,000 -109,036,000 -111,747,000 -106,046,000 -122,280,000 -121,552,000 -122,812,000 -44,078,000                           
      total liabilities and shareholders’ equity
    		4,242,757,000 3,790,913,000  3,923,260,000 4,059,850,000 4,127,458,000  4,211,118,000 4,365,014,000 4,488,162,000  4,969,274,000 5,216,136,000 4,972,899,000  4,097,136,000 3,996,495,000  3,768,183,000 3,754,114,000 3,270,955,000 3,232,861,000  2,822,693,000 2,842,159,000 2,561,337,000 2,570,015,000 2,625,791,000 2,615,916,000  2,615,236,000 2,372,576,000 2,135,391,000 1,945,655,000 1,853,000,000 1,859,679,000 1,669,083,000 1,371,518,000 1,381,277,000 1,206,763,000 1,057,238,000 1,057,974,000 1,004,412,000 981,630,000 973,710,000 943,194,000 953,106,000 839,279,000 877,818,000 870,998,000 839,902,000 819,953,000  751,355,000 785,994,000   
      property and equipment, less accumulated depreciation and amortization of 1,160,495 and 1,150,529 as of march 31, 2024 and december 31, 2023, respectively
    		 2,104,442,000                                                        
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of march 31, 2024 and december 31, 2023
    		                                                         
      property and equipment
    		  2,013,616,000    1,874,352,000    1,957,623,000    2,085,030,000   2,316,772,000                                       45,685,000 
      assets held for sale
    		  1,135,000    14,019,000   28,443,000 29,449,000 29,672,000 29,542,000                                             
      liabilities and shareholders' equity
    		                                                         
      accumulated pension and other postretirement benefit obligations
    		  140,742,000    135,775,000    160,817,000    217,737,000   203,596,000     220,788,000  355,074,000 373,572,000 378,473,000 409,047,000 406,804,000 407,864,000 268,703,000 265,815,000 356,185,000 354,939,000 318,633,000 327,260,000 324,103,000 212,025,000 215,927,000 215,514,000 213,904,000 224,199,000 229,169,000 232,946,000 228,777,000 97,500,000 97,308,000 92,210,000 130,515,000 126,463,000 127,004,000 127,280,000 196,591,000 198,381,000 198,103,000  112,208,000 
      commitments and contingent liabilities
    		                                                         
      shareholders' equity:
    		                                                         
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at december 31, 2023 and 2022
    		                                                         
      accumulated income
    		  -119,738,000 -18,556,000 30,164,000 42,499,000 140,756,000 190,916,000 221,254,000 258,028,000 380,837,000 473,411,000 458,742,000 464,919,000 525,610,000 688,170,000 785,269,000 1,049,567,000 969,059,000 936,566,000 922,491,000 866,180,000 913,951,000 848,057,000 693,058,000 551,750,000 472,180,000 382,814,000 312,785,000 238,068,000 226,969,000 164,067,000 111,459,000 100,143,000 120,696,000 75,213,000 71,309,000 53,861,000 28,244,000 78,286,000                  
      total liabilities and shareholders' equity
    		  3,733,525,000    4,139,623,000    4,631,120,000    3,978,030,000   4,126,624,000     2,859,831,000       2,602,528,000                       732,935,000     
      property and equipment, less accumulated depreciation and amortization of 1,143,934 and 1,135,262 as of september 30, 2023 and december 31, 2022, respectively
    		   1,969,556,000                                                      
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of september 30, 2023 and december 31, 2022
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 1,201,101 and 1,135,262 as of june 30, 2023 and december 31, 2022, respectively
    		    1,966,777,000                                                     
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2023 and december 31, 2022
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 1,167,795 and 1,135,262 as of march 31, 2023 and december 31, 2022, respectively
    		     1,937,797,000                                                    
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of march 31, 2023 and december 31, 2022
    		                                                         
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at december 31, 2022 and 2021
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 1,102,152 and 999,966 as of september 30, 2022 and december 31, 2021, respectively
    		       1,887,671,000                                                  
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of september 30, 2022 and december 31, 2021
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 1,067,908 and 999,966 as of june 30, 2022 and december 31, 2021, respectively
    		        1,905,715,000                                                 
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2022 and december 31, 2021
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 1,033,614 and 999,966 as of march 31, 2022 and december 31, 2021, respectively
    		         1,931,596,000                                                
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of march 31, 2022 and december 31, 2021
    		                                                         
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at december 31, 2021 and 2020
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 990,444 and 894,519 as of september 30, 2021 and december 31, 2020, respectively
    		           1,983,040,000                                              
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of september 30, 2021 and december 31, 2020
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 963,989 and 894,519 as of june 30, 2021 and december 31, 2020, respectively
    		            2,001,829,000                                             
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2021 and december 31, 2020
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 928,892 and 894,519 as of march 31, 2021 and december 31, 2020, respectively
    		             2,063,134,000                                            
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of march 31, 2021 and december 31, 2020
    		                                                         
      goodwill
    		                 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,663,000 106,662,000 106,663,000 108,387,000 109,156,000 105,667,000 103,748,000 93,629,000 93,629,000 93,629,000 104,231,000 105,380,000 107,032,000   
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at december 31, 2020 and 2019
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 858,926 and 762,544 as of september 30, 2020 and december 31, 2019, respectively
    		               2,121,218,000                                          
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of september 30, 2020 and december 31, 2019
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 823,757 and 762,544 as of june 30, 2020 and december 31, 2019, respectively
    		                2,267,826,000                                         
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2020 and december 31, 2019
    		                                                         
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at december 31, 2019 and 2018
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 697,166 and 663,461 as of june 30, 2019 and december 31, 2018, respectively
    		                  2,156,582,000                                       
      intangible assets, less accumulated amortization of 18,032 and 18,939 as of june 30, 2019 and december 31, 2018, respectively
    		                  13,668,000                                       
      current maturities of long-term debt and finance lease obligations
    		                  50,029,000 93,483,000                                      
      long-term debt and finance lease obligations
    		                  515,254,000 519,105,000                                      
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2019 and december 31, 2018
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 678,428 and 663,461 as of march 31, 2019 and december 31, 2018, respectively
    		                   2,109,857,000                                      
      intangible assets, less accumulated amortization of 19,199 and 18,939 as of march 31, 2019 and december 31, 2018, respectively
    		                   13,889,000                                      
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of march 31, 2019 and december 31, 2018
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 631,180 and 558,548 as of september 30, 2018 and december 31, 2017, respectively
    		                    2,116,204,000                                     
      intangible assets, less accumulated amortization of 22,340 and 21,561 as of september 30, 2018 and december 31, 2017, respectively
    		                    14,408,000                                     
      air traffic liability
    		                    653,113,000 712,069,000 545,362,000 573,373,000 606,396,000 557,851,000 527,509,000 481,830,000 544,947,000 424,336,000 487,525,000 504,731,000 522,469,000 472,008,000 385,811,000 420,336,000 396,078,000 319,815,000 339,008,000 319,329,000 275,755,000 252,988,000 224,339,000 237,875,000 250,086,000 267,685,000 299,756,000 239,140,000 242,709,000 253,260,000 222,182,000 180,539,000 207,806,000 225,766,000 212,593,000 113,110,000 109,974,000 
      current maturities of long-term debt and capital lease obligations
    		                    105,451,000 113,526,000  58,585,000 58,359,000 58,352,000 70,183,000      113,303,000 105,522,000 56,478,000 55,576,000 45,577,000 32,506,000 31,933,000 16,036,000 99,621,000 113,912,000 47,401,000 46,653,000 27,395,000 25,593,000 24,408,000 32,166,000 23,659,000 23,409,000 23,164,000 22,992,000 14,848,000 14,828,000 14,785,000   
      long-term debt and capital lease obligations
    		                    612,583,000 578,453,000 511,201,000 447,533,000 477,169,000 527,625,000 612,596,000 818,608,000 848,217,000   786,501,000         124,362,000 129,254,000 212,247,000 219,107,000 225,548,000  204,322,000 210,131,000 221,641,000 227,269,000 232,838,000 238,381,000 123,819,000 136,342,000 158,637,000   
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of september 30, 2018 and december 31, 2017
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 611,642 and 558,548 as of june 30, 2018 and december 31, 2017, respectively
    		                     2,086,955,000                                    
      intangible assets, less accumulated amortization of 22,080 and 21,561 as of june 30, 2018 and december 31, 2017, respectively
    		                     14,668,000                                    
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2018 and december 31, 2017
    		                                                         
      flight equipment
    		                      1,848,061,000       1,741,444,000                      237,685,000     17,720,000 
      pre-delivery deposits on flight equipment
    		                      150,652,000       97,685,000                            
      other property and equipment
    		                      402,098,000       201,871,000                      52,096,000      
      less accumulated depreciation and amortization
    		                      -558,548,000       -367,507,000                            
      current maturities of long-term debt, less discount, and capital lease obligations
    		                      59,470,000     95,805,000 98,394,000 156,349,000 171,054,000 153,346,000                          
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at december 31, 2017 and 2016
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 533,964 and 454,231 as of september 30, 2017 and december 31, 2016, respectively
    		                       1,753,946,000                                  
      intangible assets, less accumulated amortization of 21,301 and 20,337 as of september 30, 2017 and december 31, 2016, respectively
    		                       15,447,000                                  
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of september 30, 2017 and december 31, 2016
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 480,614 and 454,231 as of march 31, 2017 and december 31, 2016, respectively
    		                        1,679,150,000                                 
      intangible assets, less accumulated amortization of 20,672 and 20,337 as of march 31, 2017 and december 31, 2016, respectively
    		                        16,076,000                                 
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of march 31, 2017 and december 31, 2016
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 477,615 and 432,510 as of june 30, 2016 and december 31, 2015, respectively
    		                         1,574,824,000                                
      intangible assets, less accumulated amortization of 29,684 and 28,400 as of june 30, 2016 and december 31, 2015, respectively
    		                         17,876,000                                
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2016 and december 31, 2015
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 451,385 and 432,510 as of march 31, 2016 and december 31, 2015, respectively
    		                          1,563,613,000                               
      intangible assets, less accumulated amortization of 29,060 and 28,400 as of march 31, 2016 and december 31, 2015, respectively
    		                          18,000,000                               
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of march 31, 2016 and december 31, 2015
    		                                                         
      deferred tax assets
    		                           22,102,000 22,657,000 21,943,000 17,325,000 17,325,000 20,277,000 17,675,000 17,506,000 15,336,000 15,336,000 17,135,000 18,449,000 18,449,000 20,917,000 22,488,000       20,610,000 17,788,000 18,076,000 17,609,000 11,062,000 10,992,000 10,160,000   
      property and equipment, less accumulated depreciation and amortization of 415,194 and 367,507 as of september 30, 2015 and december 31, 2014, respectively
    		                           1,617,933,000                              
      intangible assets, less accumulated amortization of 36,414 and 34,434 as of september 30, 2015 and december 31, 2014, respectively
    		                           19,320,000                              
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of september 30, 2015 and december 31, 2014
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 392,992 and 367,507 as of june 30, 2015 and december 31, 2014, respectively
    		                            1,607,933,000                             
      intangible assets, less accumulated amortization of 35,754 and 34,434 as of june 30, 2015 and december 31, 2014, respectively
    		                            19,980,000                             
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2015 and december 31, 2014
    		                                                         
      treasury stock
    		                            -17,621,000                             
      long-term debt, less discount, and capital lease obligations
    		                             893,288,000 885,486,000  653,631,000 542,642,000 617,761,000 631,268,000 494,102,000 369,586,000 377,106,000 180,163,000                  
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at december 31, 2014 and 2013
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 344,727 and 327,102 as of september 30, 2014 and december 31, 2013, respectively
    		                              1,630,978,000                           
      intangible assets, less accumulated amortization of 33,774 and 175,730 as of september 30, 2014 and december 31, 2013, respectively
    		                              21,960,000                           
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of september 30, 2014 and december 31, 2013
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 326,013 and 327,102 as of march 31, 2014 and december 31, 2013, respectively
    		                               1,484,453,000                          
      intangible assets, less accumulated amortization of 32,454 and 175,730 as of march 31, 2014 and december 31, 2013, respectively
    		                               23,280,000                          
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of march 31, 2014 and december 31, 2013
    		                                                         
      total cash, cash equivalents and restricted cash
    		                                483,209,000 443,221,000 438,485,000 451,557,000 381,249,000 322,092,000 308,723,000                   
      property and equipment, less accumulated depreciation and amortization of 287,229 and 249,495 as of june 30, 2013 and december 31, 2012, respectively
    		                                1,206,353,000                         
      intangible assets, net of accumulated amortization of 174,410 and 173,090 as of june 30, 2013 and december 31, 2012, respectively
    		                                25,260,000                         
      special preferred stock, 0.01 par value per share, three shares issued and outstanding as of june 30, 2013 and december 31, 2012
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 268,227 as of march 31, 2013 and 249,495 as of december 31, 2012
    		                                 1,076,396,000                        
      intangible assets, net of accumulated amortization of 173,750 as of march 31, 2013 and 173,090 as of december 31, 2012
    		                                 25,920,000                        
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at march 31, 2013 and december 31, 2012
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 230,675 as of september 30, 2012 and 181,599 as of december 31, 2011
    		                                  1,009,712,000                       
      intangible assets, net of accumulated amortization of 169,746 as of september 30, 2012 and 154,302 as of december 31, 2011
    		                                  29,924,000                       
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at september 30, 2012 and december 31, 2011
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 213,472 as of june 30, 2012 and 181,599 as of december 31, 2011
    		                                   987,027,000                      
      intangible assets, net of accumulated amortization of 165,090 as of june 30, 2012 and 154,302 as of december 31, 2011
    		                                   34,580,000                      
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at june 30, 2012 and december 31, 2011
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 196,333 as of march 31, 2012 and 181,599 as of december 31, 2011
    		                                    839,135,000                     
      intangible assets, net of accumulated amortization of 160,018 as of march 31, 2012 and 154,302 as of december 31, 2011
    		                                    39,652,000                     
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at march 31, 2012 and december 31, 2011
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 169,047 as of september 30, 2011 and 147,588 as of december 31, 2010
    		                                     634,986,000                    
      intangible assets, net of accumulated amortization of 148,465 as of september 30, 2011 and 130,951 as of december 31, 2010
    		                                     51,206,000                    
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at september 30, 2011 and december 31, 2010
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 157,433 as of june 30, 2011 and 147,588 as of december 31, 2010
    		                                      618,276,000                   
      intangible assets, net of accumulated amortization of 142,659 as of june 30, 2011 and 130,951 as of december 31, 2010
    		                                      57,012,000                   
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at june 30, 2011 and december 31, 2010
    		                                                         
      total cash, restricted cash and short-term investments
    		                                       328,916,000 350,886,000 342,350,000 332,755,000 314,506,000 282,640,000 259,551,000 246,956,000 142,174,000 215,255,000 201,980,000 170,517,000       
      property and equipment, less accumulated depreciation and amortization of 157,828 as of march 31, 2011 and 147,588 as of december 31, 2010
    		                                       443,098,000                  
      intangible assets, net of accumulated amortization of 136,813 as of march 31, 2011 and 130,951 as of december 31, 2010
    		                                       62,858,000                  
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at march 31, 2011 and december 31, 2010
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 128,120 as of june 30, 2010 and 108,548 as of december 31, 2009
    		                                        352,752,000                 
      long-term investments
    		                                        24,941,000 29,218,000 29,555,000 29,832,000 30,246,000 34,100,000 35,450,000 41,475,000          
      intangible assets, net of accumulated amortization of 119,204 as of june 30, 2010 and 107,464 as of december 31, 2009
    		                                        80,467,000                 
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at june 30, 2010 and december 31, 2009
    		                                                         
      accumulated deficit
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 118,182 and 108,548 as of march 31, 2010 and december 31, 2009
    		                                         339,447,000                
      intangible assets, net of accumulated amortization of 113,327 and 107,464 as of march 31, 2010 and december 31, 2009
    		                                         86,343,000                
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at march 31, 2010 and december 31, 2009
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 99,991 and 73,908 as of september 30, 2009 and december 31, 2008
    		                                          310,644,000               
      intangible assets, net of accumulated amortization of 101,602 and 84,013 as of september 30, 2009 and december 31, 2008
    		                                          98,069,000               
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at september 30, 2009 and december 31, 2008
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 90,939 and 73,908 as of june 30, 2009 and december 31, 2008
    		                                           309,209,000              
      intangible assets, net of accumulated amortization of 95,739 and 84,013 as of june 30, 2009 and december 31, 2008
    		                                           103,932,000              
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at june 30, 2009 and december 31, 2008
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 82,274 and 73,908 as of march 31, 2009 and december 31, 2008
    		                                            308,644,000             
      intangible assets, net of accumulated amortization of 89,876 and 84,013 as of march 31, 2009 and december 31, 2008
    		                                            109,795,000             
      special preferred stock, 0.01 par value per share, three shares issued and outstanding at march 31, 2009 and december 31, 2008
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 65,288 and 44,290 as of september 30, 2008 and december 31, 2007, respectively
    		                                             286,270,000            
      intangible assets, net of accumulated amortization of 78,150 and 60,562 as of september 30, 2008 and december 31, 2007, respectively
    		                                             121,520,000            
      long-term debt and capital lease obligations.
    		                                             207,257,000            
      special preferred stock, three shares outstanding as of september 30, 2008 and december 31, 2007
    		                                                         
      accumulated other comprehensive income
    		                                                         
      funded status of pension and postretirement benefits
    		                                             94,013,000 94,822,000 95,279,000 58,465,000 55,923,000 56,333,000 56,743,000      
      unrealized gain on hedge instruments and short-term investments
    		                                                2,270,000 256,000 821,000       
      property and equipment, less accumulated depreciation and amortization of 57,779 and 44,290 as of june 30, 2008 and december 31, 2007, respectively
    		                                              275,892,000           
      intangible assets, net of accumulated amortization of 72,287 and 60,562 as of june 30, 2008 and december 31, 2007, respectively
    		                                              127,383,000           
      special preferred stock, three shares outstanding as of june 30, 2008 and december 31, 2007
    		                                                         
      accumulated other comprehensive income:
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 51,734 and 44,290 as of march 31, 2008 and december 31, 2007, respectively
    		                                               276,923,000          
      intangible assets, net of accumulated amortization of 66,425 and 60,562 as of march 31, 2008 and december 31, 2007, respectively
    		                                               133,246,000          
      special preferred stock, three shares outstanding as of march 31, 2008 and december 31, 2007
    		                                                         
      property and equipment, less accumulated depreciation and amortization of
    		                                                         
      36,623 and 17,167 as of september 30, 2007 and december 31, 2006, respectively
    		                                                275,492,000         
      intangible assets, net of accumulated amortization of 54,699 and 37,110 as of september 30, 2007 and december 31, 2006, respectively
    		                                                144,972,000         
      deferred tax liabilities
    		                                                20,610,000 17,788,000        
      special preferred stock, three shares outstanding as of september 30, 2007 and december 31, 2006
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 29,748 and 17,167 as of june 30, 2007 and december 31, 2006, respectively
    		                                                 278,446,000        
      intangible assets, net of accumulated amortization of 48,836 and 37,110 as of june 30, 2007 and december 31, 2006, respectively
    		                                                 150,834,000        
      special preferred stock, three shares outstanding as of june 30, 2007 and december 31, 2006
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 22,932 and 17,167 as of march 31, 2007 and december 31, 2006, respectively
    		                                                  276,953,000       
      intangible assets, net of accumulated amortization of 42,974 and 37,110 as of march 31, 2007 and december 31, 2006, respectively
    		                                                  156,697,000       
      deferred income taxes
    		                                                  18,076,000 17,609,000 11,062,000 10,992,000 10,160,000   
      special preferred stock, three shares outstanding as of march 31, 2007 and december 31, 2006
    		                                                         
      short term investments
    		                                                   47,630,000      
      total cash, restricted cash and short term investments
    		                                                   168,201,000      
      intangible assets, net of accumulated amortization of 37,110 and 13,936 as of december 31, 2006 and 2005, respectively
    		                                                   162,560,000      
      preferred stock, three shares issued and outstanding at december 31, 2006 and 2005
    		                                                         
      loss on hedge instruments
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 13,532 and 5,751 as of september 30, 2006 and december 31, 2005, respectively
    		                                                    105,682,000     
      intangible assets, net of accumulated amortization of 31,815 and 13,936 as of september 30, 2006 and december 31, 2005, respectively
    		                                                    173,327,000     
      special preferred stock
    		                                                         
      income on hedge instruments
    		                                                    260,000 1,574,000    
      property and equipment, less accumulated depreciation and amortization of 10,728 and 5,751 as of june 30, 2006 and december 31, 2005, respectively
    		                                                     91,235,000    
      intangible assets, net of accumulated amortization of 25,845 and 13,936 as of june 30, 2006 and december 31, 2005, respectively
    		                                                     179,296,000    
      special preferred stock, three shares outstanding as of june 30, 2006 and december 31, 2005
    		                                                         
      property and equipment, less accumulated depreciation and amortization of 8,153 and 5,751 as of march 31, 2006 and december 31, 2005, respectively
    		                                                      85,237,000   
      intangible assets, net of accumulated amortization of 19,906 and 13,936 as of march 31, 2006 and december 31, 2005, respectively
    		                                                      185,235,000   
      special preferred stock, three shares outstanding as of march 31, 2006 and december 31, 2005
    		                                                         
      accumulated other comprehensive loss:
    		                                                         
      total current assets
    		                                                       119,606,000 140,884,000 
      property and equipment, less accumulated depreciation and amortization of 29,877 and 28,068 in 2003 and 2002, respectively
    		                                                       46,447,000  
      reorganization value in excess of amounts allocable to identifiable assets
    		                                                       28,320,000 28,320,000 
      liabilities and shareholders’ deficit
    		                                                         
      other accrued liabilties
    		                                                       42,415,000  
      current portion of long-term debt
    		                                                        2,153,000 
      current portion of capital lease obligations
    		                                                        1,096,000 
      total current liabilities
    		                                                       179,847,000 254,685,000 
      noncurrent liabilities:
    		                                                         
      capital lease obligations
    		                                                        2,358,000 
      accumulated pensions and other postretirement benefit obligations
    		                                                       113,816,000  
      total noncurrent liabilities
    		                                                       140,014,000  
      total liabilities not subject to compromise
    		                                                       319,861,000  
      total liabilities subject to compromise
    		                                                       76,045,000  
      shareholders’ deficit:
    		                                                         
      common and special preferred stock
    		                                                       285,000  
      notes receivable from common stock sales
    		                                                         
      minimum pension liability adjustment
    		                                                         
      unrealized gain on hedge instruments
    		                                                       171,000  
      shareholders’ deficit
    		                                                         
      total liabilities and shareholders’ deficit
    		                                                       236,257,000  
      cash flows from operating activities:
    		                                                         
      net income
    		                                                       -15,464,000  
      adjustments to reconcile net income to net cash from operating activities:
    		                                                         
      depreciation
    		                                                       1,669,000  
      amortization
    		                                                       144,000  
      net periodic postretirement benefit cost
    		                                                       642,000  
      gain on disposition of equipment
    		                                                       1,000  
      decrease (increase) in restricted cash
    		                                                         
      decrease (increase) in accounts receivable
    		                                                         
      increase in inventories
    		                                                         
      decrease (increase) in prepaid expenses
    		                                                         
      decrease in accounts payable
    		                                                         
      increase in air traffic liability
    		                                                       3,136,000  
      increase in accrued liabilities
    		                                                       518,000  
      other
    		                                                       2,737,000  
      net cash from operating activities
    		                                                         
      reorganization items
    		                                                         
      cash flows from investing activities:
    		                                                         
      additions to property and equipment
    		                                                         
      progress payments on flight equipment
    		                                                        1,089,000 
      net proceeds from disposition of equipment
    		                                                       1,000  
      net cash from investing activities
    		                                                         
      cash flows from financing activities:
    		                                                         
      long-term borrowings
    		                                                         
      repayment of long-term debt
    		                                                         
      repayment of capital lease obligations
    		                                                         
      net cash from financing activities
    		                                                         
      net decrease in cash and cash equivalents
    		                                                         
      cash and cash equivalents - beginning of period
    		                                                       71,908,000  
      cash and cash equivalents - end of period
    		                                                       30,600,000  
      property and equipment:
    		                                                         
      ground equipment, buildings and leasehold improvements
    		                                                        54,944,000 
      accumulated depreciation and amortization
    		                                                         
      total other assets
    		                                                        69,597,000 
      liabilities and shareholders’ deficiency
    		                                                         
      other liabilities and long-term deposits
    		                                                        28,642,000 
      total other liabilities and deferred credits
    		                                                        140,850,000 
      shareholders’ deficiency:
    		                                                         
      common stock - .01 par value, 60,000,000 shares authorized, 28,350,389 and 34,150,809 shares issued and outstanding in 2002 and 2001, respectively
    		                                                        284,000 
      special preferred stock - .01 par value, 2,000,000 shares authorized, seven shares issued and outstanding
    		                                                         
      accumulated other comprehensive loss -
    		                                                         
      unrealized loss on hedge instruments
    		                                                        1,889,000 
      shareholders’ deficiency
    		                                                         
      total liabilities and shareholders’ deficiency
    		                                                        256,166,000 
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.