Map of flight path and driving directions from Spokane to Fort Smith.
Shortest flight path between Spokane International Airport (GEG) and Fort Smith Regional Airport (FSM).
How far is Fort Smith from Spokane?
There are several ways to calculate distances between Spokane and Fort Smith. Here are two common methods:Vincenty's formula (applied above)
- 1461.812 miles
- 2352.559 kilometers
- 1270.280 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
- 1459.897 miles
- 2349.477 kilometers
- 1268.616 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 Fort Smith is 2 hours. Fort Smith is 2 hours ahead of Spokane.
Fort Smith, AR
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 177 kg (390 pounds).
Frequent Flyer Miles Calculator
Spokane (GEG) → Fort Smith (FSM).