Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Washington, D.C. / Virginia, United States:
Departure Airport:
Arrival Airport:
Distance from SEA to IAD:
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- About this route
- SEA Airport Information
- IAD Airport Information
- Facts about SEA
- Facts about IAD
- Map of Nearest Airports to SEA
- List of Nearest Airports to SEA
- Map of Furthest Airports from SEA
- List of Furthest Airports from SEA
- Map of Nearest Airports to IAD
- List of Nearest Airports to IAD
- Map of Furthest Airports from IAD
- List of Furthest Airports from IAD
About this route:
A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Washington Dulles International Airport (IAD), Washington, D.C. / Virginia, United States would travel a Great Circle distance of 2,300 miles (or 3,702 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Seattle–Tacoma International Airport and Washington Dulles International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | SEA / KSEA |
| Airport Names: |
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| Location: | SeaTac (near Seattle and Tacoma), Washington, United States |
| GPS Coordinates: | 47°26'56"N by 122°18'33"W |
| Area Served: | Seattle; Tacoma, Washington, US |
| Airport Type: | Public |
| Elevation: | 433 feet (132 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from SEA |
| More Information: | SEA Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | IAD / KIAD |
| Airport Name: | Washington Dulles International Airport |
| Location: | Washington, D.C. / Virginia, United States |
| GPS Coordinates: | 38°56'39"N by 77°27'20"W |
| Area Served: | Washington metropolitan area |
| Airport Type: | Public |
| Elevation: | 313 feet (95 meters) |
| # of Runways: | 5 |
| View all routes: | Routes from IAD |
| More Information: | IAD Maps & Info |
Facts about Seattle–Tacoma International Airport (SEA):
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- The airport is also served both by the King County Metro bus system and Sound Transit regional express buses.
- The two-story North Concourse added four new gate positions and a new wing 600 feet long and 30 feet wide.
- The airport was constructed by the Port of Seattle in 1944 to serve civilians of the region, after the U.S.
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- Seattle–Tacoma International Airport (SEA) has 3 runways.
- The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
- Starting in the late 1980s, the Port of Seattle and a council representing local county governments considered the future of air traffic in the region and predicted that airport could reach capacity by 2000.
- The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
- Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- A recurring problem at the airport is misidentification of the westernmost taxiway, Taxiway Tango, as a runway.
Facts about Washington Dulles International Airport (IAD):
- Loudoun County Transit provides a bus service which runs from the Dulles Town Center shopping center, to the airport, then to the Steven F.
- The furthest airport from Washington Dulles International Airport (IAD) is Margaret River Airport (MGV), which is located 11,659 miles (18,763 kilometers) away in Margaret River, Western Australia, Australia.
- In September 2009, a 121,700 square feet central Transportation Security Administration checkpoint was added on a new security mezzanine level of the main terminal.
- Under the development plan, future phases would see the addition of several new midfield concourses and a new south terminal.
- Because of Washington Dulles International Airport's relatively low elevation of 313 feet, planes can take off or land at Washington Dulles International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- At the end of World War II, growth in aviation and in the Washington metropolitan area led Congress to pass the Washington Airport Act of 1950, providing federal backing for a second airport.
- The closest airport to Washington Dulles International Airport (IAD) is Leesburg Executive Airport (JYO), which is located only 11 miles (17 kilometers) NNW of IAD.
- Washington Dulles International Airport (IAD) has 5 runways.
