How far is Spokane, WA, from Washington D.C.?
The distance between Washington D.C. (Washington Dulles International Airport) and Spokane (Spokane International Airport) is 2082 miles / 3351 kilometers / 1810 nautical miles.
The driving distance from Washington D.C. (IAD) to Spokane (GEG) is 2466 miles / 3968 kilometers, and travel time by car is about 44 hours 18 minutes.
Washington Dulles International Airport – Spokane International Airport
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Distance from Washington D.C. to Spokane
There are several ways to calculate the distance from Washington D.C. to Spokane. Here are two standard 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 planet.
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).
How long does it take to fly from Washington D.C. to Spokane?
The estimated flight time from Washington Dulles International Airport to Spokane International Airport is 4 hours and 26 minutes.
What is the time difference between Washington D.C. and Spokane?
Flight carbon footprint between Washington Dulles International Airport (IAD) and Spokane International Airport (GEG)
On average, flying from Washington D.C. to Spokane generates about 227 kg of CO2 per passenger, and 227 kilograms equals 500 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 Spokane
See the map of the shortest flight path between Washington Dulles International Airport (IAD) and Spokane International Airport (GEG).
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 | Spokane International Airport |
|---|---|
| City: | Spokane, WA |
| Country: | United States |
| IATA Code: | GEG |
| ICAO Code: | KGEG |
| Coordinates: | 47°37′11″N, 117°32′2″W |