Dulles International Airport

Coordinates: 38°56′40″N 077°27′21″W / 38.94444°N 77.45583°W / 38.94444; -77.45583
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Washington Dulles International Airport
Dulles International Airport's main terminal at dusk, August 2011
Airport typePublic
OwnerUnited States federal government
OperatorMetropolitan Washington Airports Authority
ServesWashington, D.C. metropolitan area
LocationDulles, Virginia, U.S.
OpenedNovember 17, 1962; 60 years ago (1962-11-17)
Hub for
Elevation AMSL313 ft / 95 m
Coordinates38°56′40″N 077°27′21″W / 38.94444°N 77.45583°W / 38.94444; -77.45583
FAA airport diagram
FAA airport diagram
Direction Length Surface
ft m
01L/19R 9,400 2,865 Concrete
01C/19C 11,500 3,505 Concrete
01R/19L 11,500 3,505 Concrete
12/30 10,501 3,201 Concrete
12R/30L 10,500 3,200 Planned
Statistics (2022)
Aircraft operations232,972
Total passengers21,376,896
Total cargo (tons)226,096
Source: Federal Aviation Administration,[2] Passenger traffic[3]

Washington Dulles International Airport (IATA: IAD, ICAO: KIAD, FAA LID: IAD), typically referred to as Dulles International Airport, Dulles Airport, Washington Dulles, or Dulles (/ˈdʌlɪs/ DUL-iss), is an international airport in the Mid-Atlantic United States in Loudoun County and Fairfax County, Virginia,[4] 26 miles (42 km) west of downtown Washington, D.C.[5]

The airport, which opened in 1962, is named after John Foster Dulles, an influential U.S. Secretary of State during the Cold War.[6][7] The airport's main terminal is a well-known landmark 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),[2][8] straddling the Loudoun–Fairfax line.[9] 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.

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 2021, it is the second-busiest airport in the Washington–Baltimore metropolitan area and 28th-busiest airport in the U.S.[10] 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.[11] It had more than 20 million passenger enplanements every year from 2004 to 2019, with 24 million enplanements in 2019.[12][13] An average of 60,000 passengers pass through Dulles daily to and from more than 139 destinations around the world.[12][14][15]

Increased domestic travel from Reagan National Airport has eroded some of Dulles's domestic routes.[10] Dulles overtook Reagan in total enplanements in 2019.[16] However, in 2018, Dulles surpassed Reagan in yearly passenger boardings after having fewer passengers since 2015.[17] Furthermore, it still ranks behind BWI in total annual passenger boardings.[18]

Dulles is a fortress hub for United Airlines and is frequently used by airlines that United has codeshare agreements with, mostly composed of Star Alliance members like Turkish Airlines and Lufthansa.



Before World War II, Hoover Field was the main commercial airport serving Washington, on the site now occupied by the Pentagon and its parking lots. It was replaced by Washington National Airport in 1941, a short distance southeast. After the war, in 1948, the Civil Aeronautics Administration began to consider sites for a second major airport to serve the nation's capital.[19] Congress passed the Washington Airport Act in 1950 to provide funding for a new airport in the region.[20] The initial CAA proposal in 1951 called for the airport to be built in Fairfax County near what is now Burke Lake Park, but protests from residents, as well as the rapid expansion of Washington's suburbs during the time, led to reconsideration of this plan.[21] One competing plan called for the airport to be built in the Pender area of Fairfax County, while another called for the conversion of Andrews Air Force Base in Prince George's County, Maryland, into a commercial airport.[19]

The current site was selected by President Eisenhower in 1958;[21] the Dulles name was chosen by Eisenhower's aviation advisor Pete Quesada, who later served as the first head of the Federal Aviation Administration. As a result of the site selection, the unincorporated, largely African-American community of Willard, which once stood in the airport's current footprint, was demolished, and 87 property owners had their holdings condemned.[19]

Dulles was also built over a lesser-known airport named Blue Ridge Airport, chartered in 1938 by the U.S. The airport was Loudoun County's first official airport, consisting of two grass intersecting runways in the shape of an "X". The location of the former Blue Ridge Airport sits where the Dulles Air Freight complex and Washington Dulles Airport Marriott now sit today.[22][better source needed]

Design and construction[edit]

Dulles Airport in April 1970, showing the main terminal's original size.

The civil engineering firm Ammann and Whitney was named lead contractor. The airport was dedicated by President John F. Kennedy and Eisenhower on November 17, 1962.[6][7][23] As originally opened, the airport had three long runways (current day runways 1C/19C, 1R/19L, and 12/30) and one shorter one (where current taxiway Q is located). Its original name, Dulles International Airport, was changed in 1984 to Washington Dulles International Airport.[24]

The main terminal was designed in 1958 by famed Finnish-American architect Eero Saarinen, and it is highly regarded for its graceful beauty, suggestive of flight. In the 1990s, the main terminal at Dulles was reconfigured to allow more space between the front of the building and the ticket counters. Additions at both ends of the main terminal more than doubled the structure's length. The original terminal at Taiwan Taoyuan International Airport in Taoyuan, Taiwan, was modeled after the Saarinen terminal at Dulles.[citation needed]

The design included a landscaped man-made lake to collect rainwater, a low-rise hotel, and a row of office buildings along the north side of the main parking lot. The design also included a two-level road in front of the terminal to separate arrival and departure traffic and a federally owned limited access highway connecting the terminal to the Capital Beltway (I-495) about 17 miles (27 km) to the east. (Eventually, the highway system grew to include a parallel toll road to handle commuter traffic and an extension to connect to I-66). The access road had a wide median strip to allow the construction of a passenger rail line, which opened as an extension of the Washington Metro's Silver Line on November 15, 2022.[25]

Notable operations and milestones[edit]

First Lady Pat Nixon ushered in the era of jumbo jets by christening the first Boeing 747 at Dulles, January 15, 1970.
A close-up of Dulles's iconic old air traffic control tower, which halted operations in 2007
The current air traffic control tower dwarfs the original one.
Main Terminal Station of AeroTrain.
Inside the main terminal at night showing the escalators leading to baggage claim and arrivals.
Bust of John Foster Dulles.

By the 1980s the original design, featuring mobile lounges to meet each plane, was no longer well-suited to Dulles's role as a hub airport. Instead, midfield concourses were constructed to allow passengers to walk between connecting flights without visiting the main terminal. Mobile lounges were still used for international flights and to transport passengers between the midfield concourses and the main terminal; Concourse C/D was the first to be built, followed by Concourse A/B. A tunnel (consisting of a passenger walkway and moving sidewalks) which links the main terminal and Concourse B was opened in 2004.[53] The Metropolitan Washington Airports Authority (MWAA) began a renovation program for the airport including a new security mezzanine with more room for lines.[54]

A new train system, dubbed AeroTrain and developed by Mitsubishi, began in 2010 to transport passengers between the concourses and the main terminal.[55] The system, which uses rubber tires and travels along a fixed underground guideway,[55] is similar to the people mover systems at Singapore Changi Airport,[55] Hartsfield–Jackson Atlanta International Airport, and Denver International Airport. The train is intended to replace the mobile lounges, which many passengers found crowded and inconvenient. The initial phase includes the main terminal station, a permanent Concourse A station, a permanent Concourse B station, a permanent midfield concourse station (with access to the current temporary C concourse via a tunnel with moving walkways), and a maintenance facility.[55] Mobile lounges continue to service Concourse D from both the main terminal and Concourse A. Even after AeroTrain is built out and the replacement Concourses C and D are built, the mobile lounges and plane mates will still continue to be used, to transport international arriving passengers to the International Arrivals Building, as well as transport passengers to aircraft parked on hardstands without direct access to jet bridges. Dulles has stated that the wait time for a train does not exceed four minutes, compared to the average 15-minute wait and travel time for mobile lounges.[citation needed]

Under the development plan, future phases would see the addition of several new midfield concourses and a new south terminal.[56] A fourth runway (parallel to the existing runways 1 and 19 L&R) opened in 2008,[57] and development plans include a fifth runway to parallel the existing runway 12–30.[58] If this runway is built, the current runway will be re-designated as 12L-30R while the new runway will be designated 12R-30L. An expansion of the B concourse, used by many low-cost airlines as well as international arrivals, has been completed, and the building housing Concourses C and D will eventually be knocked down to make room for a more ergonomic building. Because Concourses C and D are temporary concourses, the only way to get to those concourses is via moving walkway from the Concourse C station which is built in the location of the future gates and Concourse D by mobile lounge from the main terminal.[59][60]

In the short term, United Airlines has constructed a 20,000 square foot (1,900 m2) buildout on Concourse C between gate C18 and the AeroTrain entrance for use as a Polaris Lounge for international passengers.[61] Further expansion plans include a new three-story 550,000 square foot (51,000 m2) south concourse building above the AeroTrain station for Concourse C,[60] to replace Concourse A regional gates built in 1999.[62]

Decades-old rules set by Congress that limit the number of takeoffs and landings, as well as distance of routes, at Reagan Airport were intended in part to keep more flights at Dulles. However, those rules have been weakened by Congress over the years, causing Dulles to lose 200,000 passengers to Reagan between 2011 and 2013.[10]

In 2023, construction started on a 100 MW solar power facility, battery and bus charging equipment.[63] It would include the largest airport-based solar and battery development in the U.S. as part of an agreement with Dominion Energy. The solar panels would cover more than 835 acres (338 ha) on land, equivalent to the consumption of more than 37,000 Northern Virginia homes during peak production.[64]

Meaning of IAD[edit]

Dulles originally used airport code DIA, the initials of Dulles International Airport. When handwritten, it was often misread as DCA, the code for Washington National Airport, so in 1968 Dulles's code was changed to IAD.[65]


A mobile lounge

The airport's terminal complex consists of a main terminal (which includes four of the original gates, "Z" gates), and two parallel midfield terminal buildings: Concourses A/B and C/D. The entire terminal complex has 139 total gates: 123 gates with jetways and 16 hardstand locations[66] from which passengers can board or disembark using the airport's plane mate vehicles.[9]

Inter-terminal transportation[edit]

Conceived in early planning sessions in 1959, Dulles is one of a few remaining airports to utilize mobile lounges (also known as "plane mates" or "people movers"), now only used for transport to the International Arrivals Building as well as transport for Concourse D. They have all been given names based on the postal abbreviations of 50 states, e.g., VA, MD, AK.[67]

The Metropolitan Washington Airports Authority has gradually phased out the mobile lounge system for inter-terminal passenger movements in favor of the AeroTrain, an underground people mover which currently operates to all of the concourses except concourse D, with passenger tunnels remaining to concourses A and B. Plane mates remain in use to disembark international passengers and carry them to the International Arrivals Building, as well as to transport passengers to and from aircraft on the hard stands (i.e., those parked remotely on the apron without access to jet bridges).[68][69]

Main terminal[edit]

The terminal ceiling is suspended in a catenary curve above the luggage check-in area.
Main Terminal AeroTrain station

Dulles's main terminal houses ticketing on the upper level, baggage claim and U.S. Customs and Border Protection on the lower level, and annexes for the International Arrivals Building for international passenger processing, as well as the four Z gates (used by Air Canada and United Express), various information kiosks and other support facilities. The main terminal was recognized by the American Institute of Architects in 1966 for its design concept; its roof is a suspended catenary providing a wide enclosed area unimpeded by any columns.[citation needed]

The main terminal was extended in 1996 to 1,240 feet (380 m)—Saarinen's original design length—which was slightly more than double its originally constructed length of 600 feet (180 m).[66] On September 22, 2009, an expansion to include the 41,400 square feet (3,850 m2) International Arrivals Building opened for customs and immigration processing with a capacity to process 2,400 passengers per hour.[70]

Also in September 2009, a 121,700 square feet (11,310 m2) central security checkpoint was added on a new security mezzanine level of the main terminal. This checkpoint replaced previous checkpoints which were located behind the ticketing areas,[71] however, travelers enrolled in TSA PreCheck and CLEAR still use this area to clear security.[72] A separate security checkpoint is available on the baggage claim level. Both security checkpoints connect to the AeroTrain, which links the main terminal with the A, B, and C concourses.

Midfield terminals[edit]

All airlines aside from Air Canada Express and United Express operate out of two linear satellite terminals. Each terminal is divided into two concourses, with the north terminal containing Concourses A and B, and the south terminal containing Concourses C and D.[citation needed]

Concourses A and B[edit]

Concourse A & B at night

Concourses A and B are located in the midfield terminal building closer to the main terminal. They are utilized by all non-United flights as well as a limited number of United Express flights. Concourse A has 47 gates, located in the eastern half of the north midfield terminal. It consists of a permanent ground-level set of gates designed for small planes and United Express flights, and several former Concourse B gates.[73] The concourse is primarily used for international flights. Air France and KLM have a lounge opposite gate A19, Etihad Airways operates a First and Business Class lounge across from gate A15, and Virgin Atlantic has a Clubhouse lounge adjacent to gate A31. Concourse A's AeroTrain station is located between gates A6 and A14.[citation needed]

Concourse B has 28 gates, located in the western half of the terminal. It is the first of the permanent elevated midfield concourses. Originally constructed in 1998 and designed by Skidmore, Owings & Merrill and Hellmuth, Obata and Kassabaum, the B concourse contained 20 gates. In 2003, 4 additional gates were added to concourse B, followed by a 15-gate expansion in 2008.[74] In addition to the AeroTrain station located between gates B51 and B62, Concourse B also has an underground walkway to connect it to the main terminal. Concourse B is used by some international carriers, and is also utilized by all non-United domestic and Canada flights. The facility also includes a British Airways Galleries lounge adjacent to the AeroTrain station, a Lufthansa lounge between gates B49 and B51, and a Turkish Airlines lounge near gate B43.[75]

Concourses C and D[edit]

The interior of Concourse C and D, where United Airlines' hub operation is based

Concourses C and D are located in the south midfield terminal, and are used for United Airlines flights, including all mainline flights and most United Express regional flights (save for a few that use Concourse A).

These concourses were constructed in 1983 and designed by Hellmuth, Obata and Kassabaum. The two concourses have 22 gates each, numbered C1–C28 and D1–D32, with odd-numbered gates on the north side of the building and even numbered gates on the south side. Concourse C composes the eastern half of the terminal and Concourse D composes the western half.[76][77] The C/D concourses were given a face lift in 2006 which included light fixture upgrades, new paint finishes, new ceiling grids and tiles, heating and air conditioning replacement, and complete restroom renovations.[77]

Planned Tier 2 concourse

While all gates in Concourses C/D can be utilized for both domestic and international departures, all United international arrivals are conducted at gates C1-C14. These gates contain two exit configurations depending on the arriving flight. Domestic passengers and international passengers from airports with U.S. customs pre-clearance exit directly into the concourse, while international arrivals from airports without border pre-clearance are redirected down a sterile corridor to U.S. Customs & Immigration. Passengers arriving from international destinations who are ending their journey at Dulles are then transported by mobile lounge to the International Arrivals Building, while passengers making onward connections are directed to a separate customs facility located on the ground floor of Concourse C. After being screened by TSA at a dedicated security checkpoint within the facility, these passengers then take escalators that deposit them in Concourse C near gate C7.[78]

A new and permanent C/D concourse (also called "Tier 2") is planned as part of the D2 Dulles Development Project. The new building is to include a three-level structure with 44 airline gates and similar amenities to Concourse B.[77] The concourse plan includes a dedicated mezzanine corridor with moving sidewalks to serve international passengers. The design and construction of the new C/D concourse has not been scheduled.[77] When built, it is planned that both terminals will be connected to the main terminal and other concourses via the AeroTrain. To that extent, the AeroTrain station at Concourse C was built at the location where the future Concourse C/D structure is proposed to be built, and is connected to the existing Concourse C via an underground walkway.[60] In April 2022, the Airport Authority published plans for a 14 gate Concourse E to be built atop the AeroTrain station with the purpose of replacing outdoor boarding areas at Concourse A. Construction is expected to cost between $500 million and $800 million and the airport is seeking $230 million grants from the Bipartisan Infrastructure Bill. [79]

Airline lounges[edit]

The old air traffic control tower viewed through a skylight in the main terminal

Since many major domestic and international airlines have a large presence at Washington Dulles, there are many airline lounges within the airport:

  • Air France: Air France/KLM Lounge, A Concourse across from gate A22.[80]
  • British Airways: BA Lounge for First class and Business class passengers (with Concorde Dining offered for First class passengers), located opposite the Concourse B Transit station.[81]
  • Capital One opened its second ever airport lounge at Dulles. It is operated by a third-party hospitality company and was opened on September 7, 2023, located in the main terminal just beyond the TSA PreCheck checkpoint.[82]
  • Etihad Airways: First and Business class lounge located opposite gate A15; currently undergoing renovations.[83]
  • Lufthansa: Senator Lounge and Business Lounge, B Concourse at gate B51.[80]
  • Turkish Airlines: Concourse B, near gate B41.[75]
  • United Airlines: Three United Clubs in Concourse C (at gates C4, C7 and C17), and one in Concourse D at gate D8.[84] There is also a Polaris Lounge located directly across from gate C17.[85]
  • Virgin Atlantic: Clubhouse, Concourse A across from gate A32.[86]

Airlines and destinations[edit]

Passenger carriers[edit]

Aer Lingus Dublin [87]
Air Canada Vancouver
Seasonal: Toronto–Pearson
Air Canada Express Montréal–Trudeau, Toronto–Pearson [88]
Air France Paris–Charles de Gaulle [89]
Air India Delhi [90]
Alaska Airlines Los Angeles, San Diego,[91] San Francisco, Seattle/Tacoma [92]
Allegiant Air Austin, Jacksonville (FL), Nashville, Sarasota [93]
All Nippon Airways Tokyo–Haneda [94]
American Airlines Charlotte, Dallas/Fort Worth [95]
American Eagle Charlotte
Seasonal: Austin
Austrian Airlines Vienna [96]
Avianca Bogotá [97]
Avianca Costa Rica Guatemala City, San José de Costa Rica–Juan Santamaría [98]
Avianca El Salvador San Salvador [97]
British Airways London–Heathrow [99]
Brussels Airlines Seasonal: Brussels [100]
Copa Airlines Panama City–Tocumen [101]
Delta Air Lines Atlanta, Salt Lake City, Seattle/Tacoma [102]
Delta Connection Detroit, Minneapolis/St. Paul, New York–JFK [102]
Egyptair Cairo [103]
Emirates Dubai–International [104]
Ethiopian Airlinesa Addis Ababa, Lomé [105]
Etihad Airways Abu Dhabi [106]
Iberia Seasonal: Madrid [107]
Icelandair Reykjavík–Keflavík [108]
ITA Airways Rome–Fiumicino [109]
KLM Amsterdam [110]
Korean Air Seoul–Incheon [111]
Kuwait Airways Kuwait City (begins December 15, 2023) [112]
Lufthansa Frankfurt
Seasonal: Munich
Norse Atlantic Airways Seasonal: London–Gatwick [114]
Play Reykjavík–Keflavík [115]
Porter Airlines Toronto–Billy Bishop [116]
Qatar Airways Doha [117]
Royal Air Maroc Casablanca [118]
Saudia Jeddah, Riyadh [119]
Scandinavian Airlines Copenhagen [120]
Southern Airways Express Bradford (PA), DuBois (PA), Lancaster (PA), Morgantown (WV) [121]
Southwest Airlines Atlanta, Chicago–Midway (ends March 6, 2024),[122] Denver, Phoenix–Sky Harbor (begins April 9, 2024)[123] [124]
Swiss International Air Lines Zurich (begins March 28, 2024)[125] [126]
TAP Air Portugal Lisbon [127]
Turkish Airlines Istanbul [128]
United Airlines Accra, Amman–Queen Alia, Amsterdam, Atlanta, Austin, Barbados (resumes October 29, 2023),[129] Boston, Brussels, Cancún, Cape Town, Charleston (SC), Charlotte, Chicago–O'Hare, Cleveland, Dallas/Fort Worth, Denver, Dublin, Fort Lauderdale, Fort Myers, Frankfurt, Geneva, Guatemala City, Houston–Intercontinental, Jacksonville (FL), Lagos, Las Vegas, London–Heathrow, Los Angeles, Mexico City, Miami, Montego Bay, Munich, Nashville, Newark, New Orleans, New York–LaGuardia, Norfolk, Orlando, Paris–Charles de Gaulle, Phoenix–Sky Harbor, Portland (OR), Providenciales, Punta Cana, Raleigh/Durham, Rome–Fiumicino, Sacramento, St. Maarten, St. Thomas, San Antonio, San Diego, San Francisco, San Juan, San Salvador, São Paulo–Guarulhos, Seattle/Tacoma, Tampa, Tel Aviv, Tokyo–Haneda, Zurich
Seasonal: Aruba, Athens, Barcelona, Berlin, Bozeman, Burlington (VT), Calgary, Columbus–Glenn, Edinburgh, Grand Cayman, Hartford, Hayden/Steamboat Springs, Honolulu, Indianapolis, Key West (begins December 21, 2023),[130] Lisbon, Madrid, Nassau, Portland (ME), Rochester (NY), San José de Costa Rica–Juan Santamaría, Sarasota, Savannah, Syracuse, West Palm Beach
United Express Albany, Atlanta, Buffalo, Burlington (VT), Charleston (SC), Charlotte, Charlottesville (VA), Cincinnati, Cleveland, Columbia (SC), Columbus–Glenn, Dallas/Fort Worth, Dayton, Detroit, Fort Myers, Hartford, Houston–Intercontinental, Huntsville, Indianapolis, Jacksonville (FL), Johnstown (PA), Kansas City, Knoxville, Louisville, Minneapolis/St. Paul, Montréal–Trudeau, Nashville, Newark, New Orleans, New York–LaGuardia, Norfolk, Ottawa, Pittsburgh, Portland (ME), Providence, Raleigh/Durham, Richmond, Roanoke, Rochester (NY), St. Louis, San Antonio, Sarasota, Savannah, Syracuse, Toronto–Pearson, West Palm Beach
Seasonal: Key West, Panama City (FL), Traverse City
Virgin Atlantic London–Heathrow [133]
Volaris El Salvador San Salvador [134]
WestJet Seasonal: Calgary [135]
  • ^a : Some Ethiopian Airlines flights from Addis Ababa to Dulles stop at Dublin for refueling.[136] The same flight from Dulles to Addis Ababa is nonstop.

Cargo carriers[edit]

FedEx Express Greensboro, Harrisburg, Indianapolis, Memphis, New York–JFK, Newark, Philadelphia, Jacksonville
FedEx Feeder Newark
UPS Airlines Louisville


Top destinations[edit]

Busiest domestic routes to and from IAD (June 2022 – May 2023)[137]
Rank Airport Passengers Carriers
1 Colorado Denver, Colorado 480,000 Southwest, United
2 California San Francisco, California 440,000 Alaska, United
3 California Los Angeles, California 393,000 Alaska, United
4 Georgia (U.S. state) Atlanta, Georgia 357,000 Delta, Southwest, United
5 Washington (state) Seattle/Tacoma, Washington 246,000 Alaska, Delta, United
6 Texas Houston–Intercontinental, Texas 237,000 United
7 Illinois Chicago–O'Hare, Illinois 226,000 United
8 New Jersey Newark, New Jersey 225,000 United
9 Florida Orlando, Florida 225,000 Frontier, Southwest, United
10 North Carolina Charlotte, North Carolina 211,000 American, United
Busiest international routes from IAD (2022) [138]
Rank Change Airport Passengers Change Carriers
1 Increase2 United Kingdom London–Heathrow, United Kingdom 611,611 Increase229.5% British Airways, United Airlines, Virgin Atlantic
2 Steady Germany Frankfurt, Germany 546,164 Increase93.8% Lufthansa, United Airlines
3 Increase3 France Paris–Charles de Gaulle,France 423,774 Increase160.1% Air France, United Airlines
4 Decrease3 El Salvador San Salvador, El Salvador 376,732 Increase20.2% Avianca El Salvador, United Airlines, Volaris Costa Rica, Volaris El Salvador
5 Steady Turkey Istanbul, Turkey 288,953 Increase70.5% Turkish Airlines
6 Increase30 Republic of Ireland Dublin, Ireland 249,907 Increase1327.4% Aer Lingus, United Airlines
7 Increase4 Germany Munich, Germany 246,798 Increase128.2% Lufthansa, United Airlines
8 Increase1 Belgium Brussels, Belgium 236,390 Increase72.7% Brussels Airlines, United Airlines
9 Decrease5 Ethiopia Addis Ababa, Ethiopia 227,876 Increase29.0% Ethiopian Airlines
10 Increase2 United Arab Emirates Dubai–International, United Arab Emirates 226,656 Increase139.5% Emirates
11 Decrease4 Panama Panama City–Tocumen, Panama 217,127 Increase48.7% Copa Airlines
12 Decrease2 Mexico Cancún, Mexico 212,998 Increase67.0% United Airlines
13 Decrease5 Qatar Doha, Qatar 207,134 Increase44.3% Qatar Airways
14 Decrease1 Canada Toronto–Pearson, Canada 196,534 Increase179.1% Air Canada, United Airlines
15 Increase1 Netherlands Amsterdam, Netherlands 169,343 Increase180.1% KLM, United Airlines
16 Increase6 Portugal Lisbon, Portugal 155,853 Increase274.6% TAP Air Portugal, United Airlines
17 Increase2 United Arab Emirates Abu Dhabi, United Arab Emirates 141,876 Increase188.2% Etihad Airways
18 Decrease4 Dominican Republic Punta Cana, Dominican Republic 113,539 Increase66.5% United Airlines
19 IncreaseNew Iceland Reykjavík—Keflavík, Iceland 106,980 IncreaseN/A Icelandair
20 Increase8 Canada Montréal–Trudeau, Canada 106,166 Increase203.3% Air Canada, United Airlines

Airline market share[edit]

Largest airlines at IAD (CY 2020)[139]
Rank Airline Enplanements Percent of market share
1 United Airlines 2,899,449 70.42%
2 Delta Air Lines 212,151 5.12%
3 American Airlines 142,382 3.44%
4 Southwest Airlines 85,013 2.05%
5 Alaska Airlines 63,659 2.05%

Annual traffic[edit]

Annual passenger traffic at IAD airport. See Wikidata query.
Annual passenger traffic at IAD
Year Passengers Year Passengers Year Passengers
1999 19,797,329 2009 23,213,341 2019 24,817,677
2000 20,104,693 2010 23,741,603 2020 8,333,460
2001 18,002,319 2011 23,211,856 2021 15,006,955
2002 17,235,163 2012 22,561,521 2022 21,376,896
2003 16,950,381 2013 21,947,065 2023
2004 22,868,852 2014 21,572,233 2024
2005 27,052,118 2015 21,650,546 2025
2006 23,020,362 2016 21,969,094 2026
2007 24,737,528 2017 22,892,504 2027
2008 23,876,780 2018 24,060,709 2028

Ground transportation[edit]


Washington Dulles is accessible via the Dulles Access Road/Dulles Greenway (State Route 267) and State Route 28. The Access Road is a toll-free, limited access highway owned by the Metropolitan Washington Airports Authority (MWAA) to facilitate car access to Washington Dulles from the Capital Beltway and Interstate 66.[142] After it opened, non-airport traffic between Washington and Reston became so heavy that a parallel set of toll lanes were added on the same right-of-way to accommodate non-airport traffic (Dulles Toll Road). However, the airport-only lanes are both less congested as well as toll-free. As of November 1, 2008, MWAA assumed responsibility from the Virginia Department of Transportation both for operating the Dulles Toll Road and for the construction of the Silver Line down its median. Route 28, which runs north–south along the eastern edge of the airport, has been upgraded to a limited access highway, with the interchanges financed through a property tax surcharge on nearby business properties. The Dulles Toll Road has been extended to the west to Leesburg as the Dulles Greenway.[citation needed]

Public transportation[edit]

The Dulles Airport Station of the Washington Metro is part of the system's Silver Line.

Washington Metro service is available to Dulles via a station on the Silver Line.[143] Service began operation on November 15, 2022.[144]

Fairfax Connector bus routes 981 and 983 serve Washington Dulles, connecting to the Herndon–Monroe park & ride lot in Herndon, the Reston Town Center transit in Reston, the Wiehle–Reston East Metro station, and the Steven F. Udvar-Hazy Center Air and Space Museum.[citation needed] Formerly, the Metrobus 5A route served at the airport.

Megabus provides service from Dulles to Charlottesville and Blacksburg.

Washington Flyer has a monopoly to operate cabs from Washington Dulles Airport.[145] Uber and Lyft are popular modes of transport to and from the airport and MWAA receives a $4 fee per trip, which is included in the quoted fare.[146]

Accidents and incidents[edit]

Control tower view of IAD in 1961
  • On January 21, 1970, the first commercial flight of the Boeing 747 was delayed when an engine malfunction caused the aircraft in question to be temporarily grounded. Another 747, the Clipper Victor, was on standby, and flew the inaugural flight for Pan American Airways. The Clipper Victor would later be destroyed in the Tenerife airport disaster.[citation needed]
  • There were three deaths during a nine-day air show held at Washington Dulles in conjunction with Transpo '72 (officially called the U.S. International Transportation Exposition, a $10 million event sponsored by the U.S. Department of Transportation, and attended by over one million visitors from around the world).
    • On May 29, 1972, the third day of the show, the pilot of a Kite Rider (a variety of hang glider) was killed in a crash. This was to be the first of the three air deaths during the Air Show.[147][148]
    • On June 3, 1972, a second death occurred at the Transpo '72 Air Show, during a sport plane pylon race. At 2:40 pm, during the second lap and near a turn about pylon 3, a trailing aircraft's (LOWERS R-1 N66AN) wing and propeller hit the right wing tip of a leading aircraft (CASSUTT BARTH N7017). The right wing immediately sheared off the fuselage, and the damaged aircraft crashed almost instantly, killing the 29-year-old pilot, Hugh C. Alexander. He was a professional Air Racer with over 10,200 hours.[149][150]
    • On June 4, 1972, during the last day of the 9-day Transpo '72 Air Show, the U.S. Air Force Thunderbirds experienced their first fatal crash at an air show. Major Joe Howard flying Thunderbird 3 was killed when his F-4E-32-MC Phantom II, 66-0321, lost power during a vertical maneuver. The pilot broke out of formation just after he completed a wedge roll and was ascending at around 2,500 feet (760 m) AGL. The aircraft staggered and descended in a flat attitude with little forward speed. Although Major Howard ejected as the aircraft fell back to earth from about 1,500 feet (460 m) tail first, and descended under a good canopy, winds blew him into the fireball ascending from the blazing crash site. The parachute melted and the pilot plummeted 200 feet (61 m), sustaining fatal injuries.[151]
  • On December 1, 1974, while diverting to Washington Dulles, TWA Flight 514 crashed onto the western slope of Mount Weather.[152] All 85 passengers and seven crew members were killed on impact.
  • Air France Concorde incidents of 1979:
    • On June 14, 1979, the number 5 and 6 tires on an Air France Concorde blew out during takeoff. Shrapnel thrown from the tires and rims damaged number 2 engine, punctured three fuel tanks, severed several hydraulic lines and electrical wires, in addition to tearing a large hole on the top of the wing, over the wheel well area.[153]
    • On July 21, 1979, one month after the above tire incident, another Air France Concorde blew several of its landing gear tires during takeoff. After that second incident the "French director general of civil aviation issued an air worthiness directive and Air France issued a Technical Information Update, each calling for revised procedures. These included required inspection of each wheel/tire for condition, pressure and temperature prior to each take-off. In addition, crews were advised that landing gear should not be raised when a wheel/tire problem is suspected."[153]
  • On November 15, 1979 American Airlines Flight 444 diverted to Dulles Airport instead of its scheduled destination of Washington National Airport due to the detonation of a small bomb. The bomb detonated incompletely in the cargo hold of the aircraft and resulted in 12 passengers being treated for smoke inhalation. It was later determined this was the third bombing perpetrated by Theodore John Kaczynski aka "The Unabomber." Ultimately it was the involvement of the aircraft in his bombing targets that resulted in the FBI becoming involved with the investigation and search for the "Unabomber."[citation needed]
  • On July 20, 1988, a Fairways Corp. de Havilland Canada DHC-6 Twin Otter stalled and crashed after takeoff. The sole occupant, the pilot, was killed.[154]
  • On June 18, 1994, a Learjet 25 operated by Mexican carrier TAESA crashed in trees while approaching the airport from the south. 12 people died.[155] The passengers were planning to attend the 1994 FIFA World Cup soccer games being staged in Washington, D.C.
  • On September 11, 2001, American Airlines Flight 77 took off from Dulles Airport out of Gate D-26 bound for Los Angeles. It was deliberately crashed into the Pentagon at 9:37 am EDT by al-Qaeda terrorists, killing everyone on board. Now, an American flag flies over Gate D26.[156][failed verification]

In popular culture[edit]

Dulles has been a popular filming location, particularly in its early years when it had relatively low traffic levels in relation to its size and its elaborate design.

  • The airport featured extensively in the Airport film franchise - in all but the first film of the series. In particular, both Airport 1975 and Airport '79 contain scenes shot both inside and outside the main terminal building in its pre-extended state. Also shown is the mobile lounge system operating in its original form when the lounges directly docked with aircraft on the apron. Airport '77 contains a night-time view of the terminal with a Boeing 747 taking off in the foreground.
  • Die Hard 2 was set at Dulles, but in fact contains no footage actually shot at the airport.

See also[edit]


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External links[edit]