How far is Washington D.C. from Spokane?
There are several ways to calculate distances between Spokane and Washington D.C.. Here are two common methods:Vincenty's formula (applied above)
- 2082.337 miles
- 3351.196 kilometers
- 1809.501 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
- 2077.362 miles
- 3343.190 kilometers
- 1805.178 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).
Estimated flight time from Spokane International Airport (GEG) to Washington Dulles International Airport (IAD) is 4 hours 26 minutes.
Time difference and current local times
The time difference between Spokane and Washington D.C. is 3 hours. Washington D.C. is 3 hours ahead of Spokane.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 231 kg (508 pounds).
Spokane to Washington D.C. flight map.
Frequent Flyer Miles Calculator
Spokane (GEG) → Washington D.C. (IAD).