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Summary of the main accounting policies: Consolidation (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Aeropuerto de Cancun, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aeropuerto de Cozumel, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aeropuerto de Mrida, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aeropuerto de Huatulco, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aeropuerto de Oaxaca, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aeropuerto de Veracruz, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aeropuerto de Villahermosa, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aeropuerto de Tapachula, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aeropuerto de Minatitln, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Cancun Airport Services, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aerostar Airport Holdings, LLC |  |
Subsidiary |  |
Proportion of interest in subsidiary | 60.00% | 60.00%
Sociedad Operadora de Aeropuertos Centro Norte, S.A. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
RH Asur, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Servicios Aeroportuarios del Sureste, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Asur FBO, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Caribbean Logistics, S. A. de C. V. |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Cargo RF, S. A. de C. V |  |
Subsidiary |  |
Proportion of interest in subsidiary | 100.00% | 100.00%

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