Bajio International Airport, officially known as Aeropuerto Internacional de Guanajuato (Guanajuato International Airport) (IATA: BJX, ICAO: MMLO), is an international airport located in Silao, Guanajuato, Mexico. It is the main international airport serving the Greater León Metropolitan Area and the State of Guanajuato with a population of 6 million inhabitants including Celaya, Guanajuato, Irapuato, Salamanca, and San Miguel de Allende. It is the ninth-busiest airport in Mexico; it handled 2,119,000 passengers in 2021 and 2,603,200 passengers in 2022, an increase of 22.9% from the previous year. Bajio International Airport serves as a focus city for Volaris.

The airport features a terminal with 11 gates, 3 of which are equipped with jet bridges. The runway 13/31 is 11,480ft (3,499m) long. It has the capacity to handle 26 flights per hour.