Washington Dulles International Airport (IATA: IAD, ICAO: KIAD, FAA LID: IAD), typically referred to as Dulles International Airport, Dulles Airport, Washington Dulles, or simply Dulles (/dls/ DUL-iss), is an international airport in the Eastern United States, located in Loudoun County and Fairfax County in Virginia, 26 miles (42 km) west of Downtown Washington, D.C., and 29 miles (47 km) away from Ronald Reagan National Airport in Arlington County, Virginia.
Opened in 1962, it is named after John Foster Dulles (1888–1959), the 52nd U.S.