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Other operating income and expenses (Details)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2020
USD ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2019
MXN ($)
Dec. 31, 2018
MXN ($)
Analysis of other operating income        
Gain on sale and leaseback transactions of aircraft and spare engines   $ 710,522 $ 284,759 $ 609,168
Loss on sale of rotable spare parts furniture and equipment   (2,604) (8,954) (2,356)
Other income   22,415 51,403 15,161
Other operating income $ 36,611 730,333 327,208 621,973
Analysis of other operating expenses        
Administrative and operational support expenses   632,041 581,181 536,079
Technology and communications   383,648 381,055 385,841
Passenger services   87,850 65,477 70,337
Insurance   53,507 74,661 60,892
Others   194 10,553 5,949
Other operating expenses $ 58,011 $ 1,157,240 $ 1,112,927 $ 1,059,098