Louisville International Airport

Louisville Muhammad Ali International Airport (IATA: SDF, ICAO: KSDF, FAA LID: SDF) is a civil-military airport in Louisville in Jefferson County, Kentucky. The airport covers 1,500 acres (6.1 km2) and has three runways. Its IATA airport code, SDF, is based on the airport's former name, Standiford Field. It has no regularly-scheduled international passenger flights, but it is a port of entry, as it handles numerous international cargo flights.

Over 4.2 million passengers and over 5.7 billion pounds (2.89 million tons) of cargo passed through the airport in 2019.[5] It is also the third-busiest in the United States in terms of cargo traffic, and seventh-busiest for such in the world.

The airport is home to Worldport, the worldwide hub of UPS. The Kentucky Air National Guard's 123d Airlift Wing operates C-130 transport aircraft from the co-located Louisville Air National Guard Base.