How far is Fort Smith, AR, from Idaho Falls, ID?
The distance between Idaho Falls (Idaho Falls Regional Airport) and Fort Smith (Fort Smith Regional Airport) is 1099 miles / 1769 kilometers / 955 nautical miles.
The driving distance from Idaho Falls (IDA) to Fort Smith (FSM) is 1397 miles / 2248 kilometers, and travel time by car is about 25 hours 0 minutes.
Idaho Falls Regional Airport – Fort Smith Regional Airport
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Distance from Idaho Falls to Fort Smith
There are several ways to calculate the distance from Idaho Falls to Fort Smith. Here are two standard methods:
Vincenty's formula (applied above)- 1099.074 miles
- 1768.789 kilometers
- 955.069 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 1097.528 miles
- 1766.300 kilometers
- 953.726 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).
How long does it take to fly from Idaho Falls to Fort Smith?
The estimated flight time from Idaho Falls Regional Airport to Fort Smith Regional Airport is 2 hours and 34 minutes.
What is the time difference between Idaho Falls and Fort Smith?
Flight carbon footprint between Idaho Falls Regional Airport (IDA) and Fort Smith Regional Airport (FSM)
On average, flying from Idaho Falls to Fort Smith generates about 157 kg of CO2 per passenger, and 157 kilograms equals 345 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Idaho Falls to Fort Smith
See the map of the shortest flight path between Idaho Falls Regional Airport (IDA) and Fort Smith Regional Airport (FSM).
Airport information
| Origin | Idaho Falls Regional Airport |
|---|---|
| City: | Idaho Falls, ID |
| Country: | United States  |
| IATA Code: | IDA |
| ICAO Code: | KIDA |
| Coordinates: | 43°30′52″N, 112°4′15″W |
| Destination | 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 |