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Financial assets and liabilities - Aircraft financing and Notes (Details)
12 Months Ended
Oct. 13, 2021
MXN ($)
item
Jun. 20, 2019
MXN ($)
item
Dec. 31, 2021
MXN ($)
aircraft
Dec. 31, 2020
MXN ($)
aircraft
Dec. 31, 2019
MXN ($)
aircraft
Aircraft financing          
Number of aircraft incorporated to fleet | aircraft     15 7 7
Maturity of notes     5 years    
Basis points     0.25%    
Financial liabilities     $ 6,276,680,000 $ 5,354,633,000 $ 4,975,969,000
Financial ratio long term debt adjusted from dividend payable     6.50%    
Borrowings, adjustment to interest rate basis     0.25%    
Finance pre-delivery payments of aircraft          
Aircraft financing          
Financial liabilities     $ 3,535,649    
Revolving line of credit          
Aircraft financing          
Basis points     2.60% 2.60%  
Financial liabilities     $ 3,552,091,000    
Borrowings, adjustment to interest rate basis     2.60% 2.60%  
Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Number of notes issued | item 15,000,000 15,000,000      
Notes issued $ 1,500,000,000 $ 1,500,000,000      
Authorized amount under the program $ 3,000,000,000.0 $ 3,000,000,000.0      
Maturity of notes 5 years 5 years      
Basis points 200.00%        
Financial liabilities     $ 2,755,997,000    
Borrowings, adjustment to interest rate basis 200.00%        
Short-term working capital facility with Banco Sabadell S.A.          
Aircraft financing          
Basis points     3.00% 3.00%  
Borrowings, adjustment to interest rate basis     3.00% 3.00%  
Sustainability Linked Bond Principles 2020 [Member] | 2022          
Aircraft financing          
Carbon dioxide emissions measured as grams of CO2 emissions per revenue passenger/kilometer     21.54%    
Sustainability Linked Bond Principles 2020 [Member] | 2023          
Aircraft financing          
Carbon dioxide emissions measured as grams of CO2 emissions per revenue passenger/kilometer     24.08%    
Sustainability Linked Bond Principles 2020 [Member] | 2024          
Aircraft financing          
Carbon dioxide emissions measured as grams of CO2 emissions per revenue passenger/kilometer     25.53%    
Sustainability Linked Bond Principles 2020 [Member] | 2030          
Aircraft financing          
Carbon dioxide emissions measured as grams of CO2 emissions per revenue passenger/kilometer     35.42%    
Within one year          
Aircraft financing          
Financial liabilities     $ 4,058,088,000    
Within one year | Revolving line of credit          
Aircraft financing          
Financial liabilities     3,552,091,000    
Within one year | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     505,997,000    
Between one year and two years          
Aircraft financing          
Financial liabilities     583,333,000    
Between one year and two years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     583,333,000    
Between two and three years          
Aircraft financing          
Financial liabilities     750,000,000    
Between two and three years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     750,000,000    
Between three and four years          
Aircraft financing          
Financial liabilities     916,667,000    
Between three and four years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     $ 916,667,000    
28-day TIIE.          
Aircraft financing          
Basis points     2.40%   3.00%
Debt service coverage ratio prior computation period of debt service     6 months    
Debt service coverage ratio extended prior computation period of debt service     6 months    
Consecutive days for event of retention     90 days    
Joint obligor as percentage of EBITDA     85.00%    
Borrowings, adjustment to interest rate basis     2.40%   3.00%
28-day TIIE. | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Basis points     1.75% 1.75%  
Borrowings, adjustment to interest rate basis     1.75% 1.75%  
28-day TIIE. | Minimum          
Aircraft financing          
Debt service coverage ratio     2.5    
28-day TIIE. | Maximum          
Aircraft financing          
Basis points     10.00%    
Borrowings, adjustment to interest rate basis     10.00%    
200 Basis Point | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Maturity of notes     5 years    
Basis points     2.00%    
Borrowings, adjustment to interest rate basis     2.00%    
200 Basis Point | Between one year and two years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     $ 83,333    
200 Basis Point | Between two and three years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     500,000    
200 Basis Point | Between three and four years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     500,000    
200 Basis Point | Between four and five years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     $ 416,667    
175 Basis Point | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Basis points     1.75%    
Borrowings, adjustment to interest rate basis     1.75%    
175 Basis Point | Between one year and two years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     $ 250,000    
175 Basis Point | Between two and three years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     500,000    
175 Basis Point | Between three and four years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     500,000    
175 Basis Point | Between four and five years | Asset backed trust notes ("CEBUR"), in Mexican pesos          
Aircraft financing          
Financial liabilities     $ 250,000