Saltillo International Airport (Spanish: Aeropuerto Internacional de Saltillo); officially Aeropuerto Internacional Plan de Guadalupe (Plan de Guadalupe International Airport) (IATA: SLW, ICAO: MMIO), is an international airport situated in Ramos Arizpe, Coahuila, Mexico. Serving the metropolitan area of Saltillo–Ramos Arizpe, the airport does not currently operate scheduled passenger public services. Passengers traveling to and from Saltillo commonly utilize Monterrey International Airport, located 85 kilometres (53 mi) northeast of Saltillo.

Historically, Saltillo International Airport has been served by various airlines, including Continental Express, Mexicana, MexicanaClick, Aeromexico Connect, Taesa, Aeromar, TAR and BAX Global. Today, the airport's focus remains on cargo operations, facilitating flights to U.S. airports and serving as a hub for the cargo airline Aeronaves TSM. Additionally, the airport supports general aviation flights and flight training activities. It is operated by the state-owned Administradora Coahuilense de Infraestructura y Transporte Aéreo. The airport handled 3,593 passengers in 2020 and 4,665 passengers in 2021.