VivaAerobus.com is a Mexican regional and ultra-low cost airline part-owned by the founders of Europe's biggest low-cost carrier, Ryanair and the biggest bus company group in Mexico, IAMS. As of November, 2011 it has a fleet of 17 second-hand Boeing 737-300s. Viva Aerobus serves Mexico City, Monterrey, and Veracruz from Cancun's Terminal 2.