Orlando International Airport (IATA: MCO, ICAO: KMCO, FAA LID: MCO)[4] is a primary international airport that is located 6 miles (9.7 km) southeast of downtown Orlando, Florida. It handled 19,618,838 passengers in 2021, making it the state's busiest airport and the seventh busiest airport in the United States.The airport code MCO stands for the airport's former name, McCoy Air Force Base, a Strategic Air Command (SAC) installation that was closed in 1975 as part of a general military drawdown following the end of the Vietnam War.