- MasAir is a cargo airline based in Mexico City, Mexico. It was founded in 1992 as a subsidiary of Grupo TACA, and it operates primarily within Mexico and to destinations in North and South America. MasAir's fleet consists of various cargo aircraft, including Boeing 767 and Boeing 737 freighters. The airline provides cargo transportation services to both domestic and international customers, serving various industries such as automotive, pharmaceuticals, perishables, and e-commerce.