How far is Helena, MT, from Fort Smith, AR?
The distance between Fort Smith (Fort Smith Regional Airport) and Helena (Helena Regional Airport) is 1201 miles / 1932 kilometers / 1043 nautical miles.
The driving distance from Fort Smith (FSM) to Helena (HLN) is 1597 miles / 2570 kilometers, and travel time by car is about 27 hours 24 minutes.
Fort Smith Regional Airport – Helena Regional Airport
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Distance from Fort Smith to Helena
There are several ways to calculate the distance from Fort Smith to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1200.756 miles
- 1932.430 kilometers
- 1043.429 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- 1199.623 miles
- 1930.605 kilometers
- 1042.443 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 Helena?
The estimated flight time from Fort Smith Regional Airport to Helena Regional Airport is 2 hours and 46 minutes.
What is the time difference between Fort Smith and Helena?
The time difference between Fort Smith and Helena is 1 hour. Helena is 1 hour behind Fort Smith.
Flight carbon footprint between Fort Smith Regional Airport (FSM) and Helena Regional Airport (HLN)
On average, flying from Fort Smith to Helena generates about 161 kg of CO2 per passenger, and 161 kilograms equals 356 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 Helena
See the map of the shortest flight path between Fort Smith Regional Airport (FSM) and Helena Regional Airport (HLN).
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 | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |