Air Miles Calculator

Distance between Boise, ID (BOI) and Fort Smith, AR (FSM)

Flight distance from Boise to Fort Smith (Boise Airport – Fort Smith Regional Airport) is 1294 miles / 2083 kilometers / 1125 nautical miles. Estimated flight time is 2 hours 57 minutes.

Driving distance from Boise (BOI) to Fort Smith (FSM) is 1638 miles / 2636 kilometers and travel time by car is about 26 hours 10 minutes.

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).

Airport information


A Boise Airport
City: Boise, ID
Country: United States Flag of United States
IATA Code: BOI
ICAO Code: KBOI
Coordinates: 43°33′51″N, 116°13′22″W

B Fort Smith Regional Airport
City: Fort Smith, AR
Country: United States Flag of United States
IATA Code: FSM
ICAO Code: KFSM
Coordinates: 35°20′11″N, 94°22′2″W

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.

Time Difference

Boise, ID

 MST

Fort Smith, AR

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 166 kg (367 pounds).

Frequent Flyer Miles Calculator

Boise (BOI) → Fort Smith (FSM).

Distance:
1294
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1294

Round trip?