Map of flight path and driving directions from Seattle to Washington D.C..
Shortest flight path between Seattle Boeing Field (BFI) and Ronald Reagan Washington National Airport (DCA).
How far is Washington D.C. from Seattle?
There are several ways to calculate distances between Seattle and Washington D.C.. Here are two common methods:Vincenty's formula (applied above)
- 2327.934 miles
- 3746.446 kilometers
- 2022.919 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
- 2322.250 miles
- 3737.299 kilometers
- 2017.980 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).
Time difference and current local times
The time difference between Seattle and Washington D.C. is 3 hours. Washington D.C. is 3 hours ahead of Seattle.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 255 kg (563 pounds).
Frequent Flyer Miles Calculator
Seattle (BFI) → Washington D.C. (DCA).