Exhibit 8.1
List of Material Subsidiaries of Grupo Aeroportuario del Sureste, S.A.B. de C.V.
| Shareholding | | | | |
| | percentage (%) | | | Main activity |
Aeropuerto de Cancun, S. A. de C. V. |
| 100 | % | | Airport services |
Aeropuerto de Cozumel, S. A. de C. V. |
| 100 | % | | Airport services |
Aeropuerto de Merida, S. A. de C. V. |
| 100 | % | | Airport services |
Aeropuerto de Huatulco, S. A. de C. V. |
| 100 | % | | Airport services |
Aeropuerto de Oaxaca, S. A. de C. V. |
| 100 | % | | Airport services |
Aeropuerto de Veracruz, S. A. de C. V. |
| 100 | % | | Airport services |
Aeropuerto de Villahermosa, S. A. de C. V. |
| 100 | % | | Airport services |
Aeropuerto de Tapachula, S. A. de C. V. |
| 100 | % | | Airport services |
Aeropuerto de Minatitlan, S. A. de C. V. |
| 100 | % | | Airport services |
Cancun Airport Services, S. A. de C. V. (*) |
| 100 | % | | Airport services |
Aerostar Airport Holdings, LLC | | 60 | % | | Airport services |
Sociedad Operadora de Aeropuertos Centro Norte, S.A. | | 100 | % | | Airport services |
ASUR Dominicana, LLC. (*) | | 100 | % | | Commercial |
RH Asur, S. A. de C. V. |
| 100 | % | | Administrative services |
Servicios Aeroportuarios del Sureste, S. A. de C. V. |
| 100 | % | | Administrative services |
Asur FBO, S. A. de C. V. (*) |
| 100 | % | | Administrative services |
Caribbean Logistics, S. A. de C. V. (*) |
| 100 | % | | Cargo services |
Cargo RF, S. A. de C. V. (*) |
| 100 | % | | Cargo services |
ASUR US Commercial Airports, LLC (*)(**) | | 100 | % | | Commercial |
(*) | These subsidiaries sub-consolidate at Cancun Airport. |
(**) | This subsidiary acquired on December 11, 2025, ASUR Airports, LLC (URW Airports), with a 100% ownership interest, and ASUR Airports, which in turn holds an 81.38% equity interest in its subsidiary AUSR Airports JFKT8 Innovation Partners, LLC. |