Air Miles Calculator

Distance between Spokane, WA (GEG) and Washington D.C. (IAD)

Distance from Spokane to Washington D.C. (Spokane International Airport – Washington Dulles International Airport) is 2082 miles / 3351 kilometers / 1810 nautical miles.

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).

Flight duration

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.

Time Difference

Spokane
Washington D.C.

Spokane, WA

 PST

Washington D.C.

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 231 kg (508 pounds).

Airport information


A Spokane International Airport
City: Spokane, WA
Country: United States Flag of United States
IATA Code: GEG
ICAO Code: KGEG
Coordinates: 47°37′11″N, 117°32′2″W

B Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W

Map

Spokane to Washington D.C. flight map.

Frequent Flyer Miles Calculator

Spokane (GEG) → Washington D.C. (IAD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
2082
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2082

Round trip?