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Revenue from contract with customers - Summary of Changes in Contract Liabilities (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Air traffic liability    
Disclosure of changes in contact liabilities [line items]    
Balance at beginning of year $ 651,805 $ 557,331
Sales 3,722,763 3,320,260
Revenue recognition (3,076,635) (2,623,256)
Tax recognition (547,206) (450,541)
Reimbursements (84,033) (105,508)
Interline tickets (52,675) (52,496)
Other (2,163) 6,015
Balance at end of year 611,856 651,805
Frequent flyer liability    
Disclosure of changes in contact liabilities [line items]    
Balance at beginning of year 111,526 95,114
Revenue recognition (52,597) (31,299)
Deferred of revenue 65,887 47,711
Balance at end of year 124,816 111,526
Current 55,062 55,292
Non-current $ 69,754 $ 56,234