How far is Seattle, WA, from Washington D.C.?
The distance between Washington D.C. (Washington Dulles International Airport) and Seattle (Seattle Boeing Field) is 2305 miles / 3710 kilometers / 2003 nautical miles.
The driving distance from Washington D.C. (IAD) to Seattle (BFI) is 2740 miles / 4410 kilometers, and travel time by car is about 49 hours 19 minutes.
Washington Dulles International Airport – Seattle Boeing Field
Search flights
Distance from Washington D.C. to Seattle
There are several ways to calculate the distance from Washington D.C. to Seattle. Here are two standard methods:
Vincenty's formula (applied above)- 2305.212 miles
- 3709.878 kilometers
- 2003.174 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- 2299.575 miles
- 3700.808 kilometers
- 1998.276 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 Washington D.C. to Seattle?
The estimated flight time from Washington Dulles International Airport to Seattle Boeing Field is 4 hours and 51 minutes.
What is the time difference between Washington D.C. and Seattle?
Flight carbon footprint between Washington Dulles International Airport (IAD) and Seattle Boeing Field (BFI)
On average, flying from Washington D.C. to Seattle 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 Washington D.C. to Seattle
See the map of the shortest flight path between Washington Dulles International Airport (IAD) and Seattle Boeing Field (BFI).
Airport information
| Origin | 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 |
| Destination | Seattle Boeing Field |
|---|---|
| City: | Seattle, WA |
| Country: | United States |
| IATA Code: | BFI |
| ICAO Code: | KBFI |
| Coordinates: | 47°31′47″N, 122°18′7″W |