Viva Aerobus was the leading Mexican airline in the domestic market in 2025, while foreign airlines dominated international flying to and from the country, led by American Airlines.
Allegiant executives express optimism that the airline and VivaAerobus will gain antitrust immunity to operate a transborder alliance between the U.S. and Mexico.
The ULCC is mitigating the inspections' effects though aircraft lease extensions, taking contracted deliveries of new aircraft, and sourcing interim capacity.