# 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
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
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.

MDT

CDT

## 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?