Washington Dulles International Airport | |||||||||||||||||||||||||||
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![]() Main Saarinen terminal at dusk in August 2011 | |||||||||||||||||||||||||||
Summary | |||||||||||||||||||||||||||
Airport type | Public | ||||||||||||||||||||||||||
Owner | Federal government of the United States | ||||||||||||||||||||||||||
Operator | Metropolitan Washington Airports Authority | ||||||||||||||||||||||||||
Serves | Washington, D.C. metropolitan area | ||||||||||||||||||||||||||
Location | Dulles, Virginia, U.S. | ||||||||||||||||||||||||||
Opened | November 17, 1962 | ||||||||||||||||||||||||||
Hub for | |||||||||||||||||||||||||||
Time zone | EST (UTC−05:00) | ||||||||||||||||||||||||||
• Summer (DST) | EDT (UTC−04:00) | ||||||||||||||||||||||||||
Elevation AMSL | 312 ft / 95 m | ||||||||||||||||||||||||||
Coordinates | 38°56′40″N 077°27′21″W / 38.94444°N 77.45583°W | ||||||||||||||||||||||||||
Website | flydulles.com | ||||||||||||||||||||||||||
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![]() FAA airport diagram | |||||||||||||||||||||||||||
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Runways | |||||||||||||||||||||||||||
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Statistics (2024) | |||||||||||||||||||||||||||
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Washington Dulles International Airport (/ˈdʌlɪs/ DUL-iss) (IATA: IAD, ICAO: KIAD, FAA LID: IAD) – commonly known by its former name of Dulles International Airport, by its airport code of IAD, or simply as Dulles Airport – is an international airport in the Eastern United States primarily serving the country's capital city, Washington, D.C. and its surrounding area. It is located 26 miles (42 km) west of downtown Washington, D.C., in Loudoun and Fairfax counties in Northern Virginia.[5][6]
Opened in 1962, the airport is named after John Foster Dulles, an influential secretary of state during the Cold War who briefly represented New York in the United States Senate.[7][8] Its main terminal was designed by Eero Saarinen, who also designed the TWA Flight Center at John F. Kennedy International Airport. Operated by the Metropolitan Washington Airports Authority, Dulles occupies 13,000 acres (20.3 sq mi; 52.6 km2),[3][9] straddling the Loudoun–Fairfax line.[10] IAD ranks fourth in the US in terms of land area, after Denver International Airport, Dallas/Fort Worth International Airport, and Southwest Florida International Airport. 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. The Town of Herndon is the closest municipality to the airport.
Along 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. As of 2024, it is the busiest airport in the Washington–Baltimore metropolitan and the 28th-busiest airport in the United States.[11] Dulles has the most international passenger traffic of any airport in the Mid-Atlantic outside the New York metropolitan area, including approximately 90% of the international passenger traffic in the Baltimore–Washington region.[12] It had more than 20 million passenger enplanements every year from 2004 to 2019, with 27.3 million enplanements in 2024.[13] An average of 60,000 passengers pass through Dulles daily to and from more than 139 destinations around the world.[14][15][16]
Increased domestic travel from Reagan National Airport has eroded some of Dulles's domestic routes.[11] Dulles overtook Reagan in total enplanements in 2019.[17] In 2018, however, Dulles surpassed Reagan in yearly passenger boardings after having fewer passengers since 2015.[18] Furthermore, it still ranks behind BWI in total annual passenger boardings.[19]
In 2024, IAD set an all-time passenger record, with 27.25 million passengers, breaking the record set in 2005.[13]
Dulles is a hub for United Airlines and is frequently used by Star Alliance members like Turkish Airlines and Lufthansa, that United has codeshare agreements with. Dulles is also a hub for regional operators Mesa, GoJet, and CommuteAir, who operate under the United Express brand.
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