As of 2021, it is the second-busiest airport in the Washington–Baltimore metropolitan area and 28th-busiest airport in the U.S. Most of the airport is in the unincorporated community of Dulles in Loudoun County, with a small portion in the unincorporated community of Chantilly in Fairfax County.Īlong with Ronald Reagan Washington National Airport (DCA) and Baltimore/Washington International Airport (BWI), Dulles is one of three major airports serving the Washington–Baltimore metropolitan area.

Operated by the Metropolitan Washington Airports Authority, Washington Dulles Airport occupies 13,000 acres (20.3 sq mi 52.6 km 2), straddling the Loudoun–Fairfax line. The airport's main terminal is a well-known landmark designed by Eero Saarinen, who also designed the TWA Flight Center at John F. The airport, which opened in 1962, is named after John Foster Dulles, an influential U.S. Washington Dulles International Airport ( IATA: IAD, ICAO: KIAD, FAA LID: IAD), typically referred to as Dulles International Airport, Dulles Airport, Washington Dulles, or Dulles ( / ˈ d ʌ l ɪ s/ DUL-iss), is an international airport in the Mid-Atlantic United States in Loudoun County and Fairfax County, Virginia, 26 miles (42 km) west of downtown Washington, D.C., and 29 miles (47 km) from Ronald Reagan National Airport in Arlington County, Virginia. Source: Federal Aviation Administration, Passenger traffic

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