Map of flight path and driving directions from Boise to Fort Smith.
Shortest flight path between Boise Airport (BOI) and Fort Smith Regional Airport (FSM).
How far is Fort Smith from Boise?
There are several ways to calculate distances between Boise and Fort Smith. Here are two common methods:Vincenty's formula (applied above)
- 1294.104 miles
- 2082.659 kilometers
- 1124.546 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
- 1291.912 miles
- 2079.131 kilometers
- 1122.641 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 Boise and Fort Smith is 1 hour. Fort Smith is 1 hour ahead of Boise.
Fort Smith, AR
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 166 kg (367 pounds).
Frequent Flyer Miles Calculator
Boise (BOI) → Fort Smith (FSM).