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Income tax - Analysis of deferred taxes (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Jan. 01, 2021
 [2]
Analysis of consolidated deferred taxes        
Net operating gain (loss) $ (43,689,000) $ (397,030,000) [1] $ 133,518,000 [1]  
Deferred tax assets 966,420,000 741,346,000    
Deferred tax liabilities 768,872,000 611,265,000    
Deferred tax liability, net 197,548,000 130,081,000 146,816,000  
Reflected in consolidated statement of financial position        
Deferred tax assets 208,010,000 141,272,000 [2]   $ 156,830,000
Deferred tax liabilities (10,462,000) (11,191,000) [2]   $ (10,014,000)
Deferred tax liability, net 197,548,000 130,081,000 146,816,000  
Reconciliation of deferred tax liability, net        
Deferred tax (liability) asset, net - beginning of the year 130,081,000 146,816,000    
Deferred income tax (expense) benefit during the current year recorded on profits 67,595,000 (12,787,000)    
Deferred income tax (expense) benefit during the current year recorded in accumulated other comprehensive income (loss) (159,000) (136,000) 2,386,000  
Deferred income tax (expense) benefit for conversion purposes 31,000 (3,812,000)    
Deferred tax (liability) asset, net - end of the year 197,548,000 130,081,000 146,816,000  
Tax effect of the discontinuation of the hedging reserve 24,000,000      
Temporary differences associated with investments in subsidiaries 7,143 7,648    
Deferred tax assets.        
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 224,663,000 (27,856,000)    
Lease liabilities [member]        
Analysis of consolidated deferred taxes        
Deferred tax assets 755,855,000 633,033,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 122,856,000 (7,745,000)    
Unearned transportation revenue        
Analysis of consolidated deferred taxes        
Deferred tax assets 58,010,000 9,885,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 48,176,000 (53,134,000)    
Aircraft and engine lease return obligation        
Analysis of consolidated deferred taxes        
Deferred tax assets 77,007,000 53,056,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 23,951,000 15,448,000    
Tax losses available for offsetting against future taxable income        
Analysis of consolidated deferred taxes        
Deferred tax assets 38,387,000 4,865,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 33,122,000 (24,499,000)    
Deferred tax asset on tax losses 38,387,000 4,865,000    
Intangible        
Analysis of consolidated deferred taxes        
Deferred tax assets 29,687,000 30,052,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits (364,000) 10,430,000    
Allowance for doubtful accounts        
Analysis of consolidated deferred taxes        
Deferred tax assets 4,854,000 6,356,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits (1,510,000) 3,599,000    
Employee benefit        
Analysis of consolidated deferred taxes        
Deferred tax assets 2,486,000 294,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 2,104,000 (391,000)    
Employee profit sharing        
Analysis of consolidated deferred taxes        
Deferred tax assets 134,000 3,805,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits (3,672,000) 4,076,000    
Non derivative financial instruments        
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits   24,360,000    
Deferred tax liabilities.        
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 157,068,000 (15,069,000)    
Right of use asset        
Analysis of consolidated deferred taxes        
Deferred tax liabilities 571,521,000 465,382,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 106,233,000 (57,188,000)    
Supplemental rent        
Analysis of consolidated deferred taxes        
Deferred tax liabilities 55,479,000 63,351,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits (7,872,000) (29,592,000)    
Rotable spare parts, furniture and equipment, net.        
Analysis of consolidated deferred taxes        
Deferred tax liabilities 120,561,000 65,618,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 54,960,000 29,015,000    
Provisions        
Analysis of consolidated deferred taxes        
Deferred tax liabilities 7,345,000 2,430,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 4,200,000 12,789,000    
Inventories        
Analysis of consolidated deferred taxes        
Deferred tax liabilities 4,594,000 4,256,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 338,000 215,000    
Other prepayments        
Analysis of consolidated deferred taxes        
Deferred tax liabilities 376,000 1,431,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits (1,034,000) 675,000    
Prepaid expenses and other assets        
Analysis of consolidated deferred taxes        
Deferred tax assets 8,963,000      
Deferred tax liabilities   8,684,000    
Reconciliation of deferred tax liability, net        
Deferred income tax (expense) benefit during the current year recorded on profits 243,000 29,017,000    
Financial instruments        
Analysis of consolidated deferred taxes        
Deferred tax assets 33,000      
Deferred income taxes   113,000    
Guatemala        
Analysis of consolidated deferred taxes        
Net operating gain (loss) 10,000 32,000 91,000  
Costa Rica        
Analysis of consolidated deferred taxes        
Deferred tax assets   0 0  
Costa Rica | Tax losses available for offsetting against future taxable income        
Analysis of consolidated deferred taxes        
Net operating gain (loss) (3,869,000) 5,947,000 2,794,000  
El Salvador        
Analysis of consolidated deferred taxes        
Net operating gain (loss) $ (17,078,000) $ 2,601,000 $ 833,000  
[1] The comparative Consolidated financial statements have been re-presented from Mexican peso to U.S. dollar to reflect the Company’s change in presentation currency.
[2] The comparative Consolidated financial statements have been re-presented from Mexican peso to U.S. dollar to reflect the Company’s change in presentation currency.