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Summary of the main accounting policies: Licenses and commercial direct operation (Details)
 12 Months Ended
Dec. 31, 2021
Licenses Mexico  
Disclosure of detailed information about intangible assets [line items]  
Useful lives or amortisation rates, intangible assets other than goodwill 27
ODC Mexico  
Disclosure of detailed information about intangible assets [line items]  
Useful lives or amortisation rates, intangible assets other than goodwill 27
Commercial Right's (Unregulated Activity) | Aerostar  
Disclosure of detailed information about intangible assets [line items]  
Useful lives or amortisation rates, intangible assets other than goodwill 31
Commercial Right's (Unregulated Activity) | Airplan  
Disclosure of detailed information about intangible assets [line items]  
Useful lives or amortisation rates, intangible assets other than goodwill 11