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Description of the business and summary of significant accounting policies - Subsidiaries (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Concesionaria
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Volaris Costa Rica
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Vuela, S.A.
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Vuela El Salvador, S.A. de C.V.
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Comercializadora Volaris, S.A. de C.V.
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Servicios Earhart, S.A.
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Servicios Corporativos
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Servicios Administrativos
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Loyalty Program
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Viajes Vuela
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Deutsche Bank Mexico Sa Trust 1710
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Deutsche Bank Mexico Sa Trust 1711
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Irrevocable Administrative Trust number F/307750
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Irrevocable Administrative Trust number F/745291
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Irrevocable Administrative Trust number CIB/3081
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%
Irrevocable Administrative Trust number CIB/3249
Subsidiaries
Proportion of ownership interest in subsidiary	100.00%	100.00%

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- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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