Distance between Washington D.C. (IAD) and Seattle, WA (BFI)
Flight distance from Washington D.C. to Seattle (Washington Dulles International Airport – Seattle Boeing Field) is 2305 miles / 3710 kilometers / 2003 nautical miles. Estimated flight time is 4 hours 51 minutes.
Driving distance from Washington D.C. (IAD) to Seattle (BFI) is 2796 miles / 4499 kilometers and travel time by car is about 49 hours 20 minutes.
Washington D.C. – Seattle
How far is Seattle from Washington D.C.?
There are several ways to calculate distances between Los Angeles and Chicago. Here are two common 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 earth.
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).
Flight Duration
Estimated flight time from Washington Dulles International Airport to Seattle Boeing Field is 4 hours 51 minutes.
Time difference
The time difference between Washington D.C. and Seattle is 3 hours. Seattle is 3 hours behind Washington D.C..
Washington D.C. time to Seattle time converter
Carbon dioxide emissions
On average flying from Washington D.C. to Seattle generates about 253 kg of CO2 per passenger, 253 kilograms is equal to 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
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 |