Nonstop flight route between Washington, D.C. / Virginia, United States and Excursion Inlet, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from IAD to EXI:
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- About this route
- IAD Airport Information
- EXI Airport Information
- Facts about IAD
- Facts about EXI
- Map of Nearest Airports to IAD
- List of Nearest Airports to IAD
- Map of Furthest Airports from IAD
- List of Furthest Airports from IAD
- Map of Nearest Airports to EXI
- List of Nearest Airports to EXI
- Map of Furthest Airports from EXI
- List of Furthest Airports from EXI
About this route:
A direct, nonstop flight between Washington Dulles International Airport (IAD), Washington, D.C. / Virginia, United States and Excursion Inlet Seaplane Base (EXI), Excursion Inlet, Alaska, United States would travel a Great Circle distance of 2,853 miles (or 4,591 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 large distance between Washington Dulles International Airport and Excursion Inlet Seaplane Base, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Washington Dulles International Airport and Excursion Inlet Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | EXI / |
Airport Name: | Excursion Inlet Seaplane Base |
Location: | Excursion Inlet, Alaska, United States |
GPS Coordinates: | 58°25'14"N by 135°26'57"W |
Area Served: | Excursion Inlet, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Southeast Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from EXI |
More Information: | EXI Maps & Info |
Facts about Washington Dulles International Airport (IAD):
- Conceived in early planning sessions in 1959, Dulles is one of the few remaining airports to use the mobile lounge for boarding and disembarkation from aircraft, and to transfer passengers between the midfield concourses and to and from the main terminal building.
- Concourse A consists of a permanent ground level set of gates designed for small planes such as regional jets and several former B concourse gates.
- By the 1980s, the original design, which had mobile lounges meet each plane, was no longer well-suited to Dulles' role as a hub 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.
- The main terminal was recognized by the American Institute of Architects in 1966 for its design concept.
- Washington Dulles International Airport (IAD) has 5 runways.
- 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.
- 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.
- A new and permanent C/D concourse is planned as part of the D2 Dulles Development Project.
Facts about Excursion Inlet Seaplane Base (EXI):
- The furthest airport from Excursion Inlet Seaplane Base (EXI) is Port Elizabeth International Airport (PLZ), which is located 10,536 miles (16,956 kilometers) away in Port Elizabeth, South Africa.
- Excursion Inlet Seaplane Base (EXI) currently has only 1 runway.
- Excursion Inlet Seaplane Base is a state owned, public use seaplane base located in Excursion Inlet, in the Haines Borough of the U.S.
- The closest airport to Excursion Inlet Seaplane Base (EXI) is Gustavus Airport (GST), which is located only 9 miles (15 kilometers) W of EXI.
- Because of Excursion Inlet Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Excursion Inlet Seaplane Base 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.