How far is Washington D.C. from Seattle, WA?
The distance between Seattle (Seattle–Tacoma International Airport) and Washington D.C. (Washington Dulles International Airport) is 2306 miles / 3711 kilometers / 2004 nautical miles.
The driving distance from Seattle (SEA) to Washington D.C. (IAD) is 2740 miles / 4409 kilometers, and travel time by car is about 49 hours 14 minutes.
Seattle–Tacoma International Airport – Washington Dulles International Airport
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Distance from Seattle to Washington D.C.
There are several ways to calculate the distance from Seattle to Washington D.C.. Here are two standard methods:
Vincenty's formula (applied above)- 2305.730 miles
- 3710.713 kilometers
- 2003.625 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 2300.088 miles
- 3701.633 kilometers
- 1998.722 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Seattle to Washington D.C.?
The estimated flight time from Seattle–Tacoma International Airport to Washington Dulles International Airport is 4 hours and 51 minutes.
What is the time difference between Seattle and Washington D.C.?
Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Washington Dulles International Airport (IAD)
On average, flying from Seattle to Washington D.C. generates about 253 kg of CO2 per passenger, and 253 kilograms equals 557 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Seattle to Washington D.C.
See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Washington Dulles International Airport (IAD).
Airport information
| Origin | Seattle–Tacoma International Airport |
|---|---|
| City: | Seattle, WA |
| Country: | United States  |
| IATA Code: | SEA |
| ICAO Code: | KSEA |
| Coordinates: | 47°26′56″N, 122°18′32″W |
| Destination | Washington Dulles International Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States |
| IATA Code: | IAD |
| ICAO Code: | KIAD |
| Coordinates: | 38°56′40″N, 77°27′20″W |
Airlines flying from Seattle (SEA) to Washington D.C. (IAD)
| United Airlines |