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Accrued Liabilities
6 Months Ended
Jun. 30, 2024
Payables and Accruals [Abstract]  
Accrued Liabilities Accrued Liabilities
Other current liabilities as of June 30, 2024 and December 31, 2023 consisted of the following:

June 30, 2024December 31, 2023
(in thousands)
Salaries, wages and benefits$173,592 $187,723 
Federal excise and other passenger taxes and fees payable125,565 104,447 
Airport obligations94,452 125,278 
Aircraft maintenance53,191 58,800 
Interest payable26,185 24,732 
Aircraft and facility lease obligations18,929 36,115 
Fuel10,870 64,149 
Other55,022 104,054 
Other current liabilities$557,806 $705,298