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Accrued Liabilities
3 Months Ended
Mar. 31, 2024
Payables and Accruals [Abstract]  
Accrued Liabilities Accrued Liabilities
Other current liabilities as of March 31, 2024 and December 31, 2023 consisted of the following:

March 31, 2024December 31, 2023
(in thousands)
Salaries, wages and benefits$174,961 $187,723 
Federal excise and other passenger taxes and fees payable118,830 104,447 
Airport obligations99,973 125,278 
Aircraft maintenance31,362 58,800 
Interest payable28,773 24,732 
Aircraft and facility lease obligations22,874 36,115 
Fuel10,942 64,149 
Other89,718 104,054 
Other current liabilities$577,433 $705,298