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Summary of the main accounting policies: Consolidation (Details)			12 Months Ended
	Sep. 22, 2023	Oct. 20, 2022	Dec. 31, 2023	Dec. 31, 2022
Subsidiary
Percentage of ownership interest in subsidiary	60.00%	60.00%
Aeropuerto de Cancun, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Aeropuerto de Cozumel, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Aeropuerto de Mrida, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Aeropuerto de Huatulco, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Aeropuerto de Oaxaca, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Aeropuerto de Veracruz, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Aeropuerto de Villahermosa, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Aeropuerto de Tapachula, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Aeropuerto de Minatitln, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Cancun Airport Services, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Aerostar Airport Holdings, LLC
Subsidiary
Percentage of ownership interest in subsidiary			60.00%	60.00%
Sociedad Operadora de Aeropuertos Centro Norte, S.A.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
ASUR Dominicana, LLC.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
RH Asur, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Servicios Aeroportuarios del Sureste, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Asur FBO, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Caribbean Logistics, S. A. de C. V.
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%
Cargo RF, S. A. de C. V
Subsidiary
Percentage of ownership interest in subsidiary			100.00%	100.00%

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