Why is Viva Aerobus experiencing flight cancellations and delays in May 2026?

Reported Flight Disruptions

Between April 22 and May 5, 2026, Viva Aerobus experienced numerous flight cancellations and delays across major Mexican airports including Mexico City, Guadalajara, Monterrey, and Cancun. On May 5 alone, five cancellations and five delays were reported. The disruptions affected connectivity to various domestic and international routes.

Financial Challenges

Viva Aerobus reported a US$145 million loss in the first quarter of 2026, attributed to cost surges affecting the airline's operations. This financial strain coincided with the operational disruptions experienced in May.

US-Mexico Aviation Dispute

The broader context involves escalating tensions between US and Mexican aviation authorities. In October 2025, the US revoked 13 Mexican airline routes and imposed restrictions on Mexican carriers, alleging Mexico violated a 2015 bilateral air transport agreement. On May 5, 2026, Mexico agreed to reforms granting fair access to US carriers at Mexico City airport, with the US indicating restrictions would remain until implementation.

Airport Capacity Changes

Mexico City International Airport increased operational capacity from 44 to 46 flights per hour in May 2026. Authorities indicated this temporary increase for summer and winter 2026 could extend to subsequent seasons, following aircraft modernization and infrastructure improvements.