Map of flight path and driving directions from Spokane to Grand Forks.
Shortest flight path between Spokane International Airport (GEG) and Grand Forks International Airport (GFK).
How far is Grand Forks from Spokane?
There are several ways to calculate distances between Spokane and Grand Forks. Here are two common methods:Vincenty's formula (applied above)
- 945.439 miles
- 1521.536 kilometers
- 821.564 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
- 942.648 miles
- 1517.046 kilometers
- 819.139 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 Spokane and Grand Forks is 2 hours. Grand Forks is 2 hours ahead of Spokane.
Grand Forks, ND
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 147 kg (324 pounds).
Frequent Flyer Miles Calculator
Spokane (GEG) → Grand Forks (GFK).