Mas (legally Aerotransportes Mas de Carga, S.A. de C.V.) is a cargo airline based in Mexico City, Mexico, specialized in the shipment of air freight.

It operates scheduled cargo services in Mexico and to the United States, Ecuador, and Colombia.

Its main base is Felipe Ángeles International Airport, with secondary hubs at Los Angeles and Miami.

[6] The company reported the investment of more than $5 million in the hiring and training of crew and technical personnel to operate the aircraft.

[7] In December 2022, Mas purchased a 49% stake in Maltese charter Galistair Malta.