Overview
- The decree was published Tuesday and takes effect Wednesday, June 10, 2026, giving SICT through AFAC a 60-business-day deadline to classify all civil aerodromes and to update the general bases for slot assignment.
- Airports will be placed in three levels—no saturated, potential saturation, and saturated—with Mexico City International Airport (AICM) the only facility currently listed as saturated.
- The new slot priorities rank regular passenger flights first, then non-regular passenger (charter) flights, then regular cargo and non-regular cargo, with airport administrators required to consider recommendations from each airport’s operations and schedules committee.
- A historical-priority rule gives a carrier preference for a series of slots if it occupied them in the equivalent prior season and met at least 80% occupancy, a change likely to favor incumbent airlines at busy airports.
- The reform adds the regulatory category of “asignataria” alongside concesionaria and permisionaria and will force operational and contractual adjustments by airport managers and carriers as the updated rules are implemented over the coming months.