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Related parties - Transactions with related parties (Details) - MXN ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of transactions between related parties      
Guarantees provided $ 0 $ 0 $ 0
guarantees received 0 0 0
Provision for expected credit losses 0 0 0
Frontier      
Disclosure of transactions between related parties      
Code-share 208,968 8,358  
Aeromantenimiento, S.A.      
Disclosure of transactions between related parties      
Aircraft and engine maintenance 201,624 341,726 249,266
Technical support 5,815 4,796 8,088
Servprot, Human Capital Int., Onelink, MACF      
Disclosure of transactions between related parties      
Call center fees and other fees $ 41,467 $ 4,800 $ 202,689