Consorcio Aviaxsa, S.A. de C.V., doing business as Aviacsa, was a low-cost airline of Mexico with its headquarters in Hangar 1 of Zone C on the property of Mexico City International Airport in Venustiano Carranza, Mexico City, Mexico. The airline operated domestic services until the airline's grounding, radiating from major hubs at Monterrey, Mexico City and Guadalajara and international service to Las Vegas, Nevada in the USA. Aviacsa also had a U.S. office in Houston.

According to the Department of Communications and Transportation, as of September 2008, Aviacsa ranked as the seventh largest Mexican airline in domestic and international flights, down from the third largest at the end of 2007.

On July 6, 2009, Aviacsa suspended operations due to economic crisis. Aviacsa ceased operations on May 4, 2011.

The airline was established on May 5, 1990, as a flag carrier airline by the government of the Mexican state of Chiapas in order to fulfill the transportation needs of the fast-growing communities located in that state. They operated their first flight on September 20, 1990, using an 89-seat British Aerospace 146 (BAe 146) regional aircraft between Mexico City and the cities of Tapachula, and Tuxtla Gutiérrez, both located in the state of Chiapas. By the end of the year, the airline received a second BAe 146 and initiated service from the two towns in Chiapas to Villahermosa, Mérida, Oaxaca, Chetumal, and Cancún.

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