How far is Idaho Falls, ID, from Fort Smith, AR?
The distance between Fort Smith (Fort Smith Regional Airport) and Idaho Falls (Idaho Falls Regional Airport) is 1099 miles / 1769 kilometers / 955 nautical miles.
The driving distance from Fort Smith (FSM) to Idaho Falls (IDA) is 1398 miles / 2250 kilometers, and travel time by car is about 25 hours 1 minutes.
Fort Smith Regional Airport – Idaho Falls Regional Airport
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Distance from Fort Smith to Idaho Falls
There are several ways to calculate the distance from Fort Smith to Idaho Falls. 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 Fort Smith to Idaho Falls?
The estimated flight time from Fort Smith Regional Airport to Idaho Falls Regional Airport is 2 hours and 34 minutes.
What is the time difference between Fort Smith and Idaho Falls?
Flight carbon footprint between Fort Smith Regional Airport (FSM) and Idaho Falls Regional Airport (IDA)
On average, flying from Fort Smith to Idaho Falls 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 Fort Smith to Idaho Falls
See the map of the shortest flight path between Fort Smith Regional Airport (FSM) and Idaho Falls Regional Airport (IDA).
Airport information
| Origin | 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 |
| Destination | 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 |