How far is Fort Smith, AR, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Fort Smith (Fort Smith Regional Airport) is 1201 miles / 1932 kilometers / 1043 nautical miles.
The driving distance from Helena (HLN) to Fort Smith (FSM) is 1597 miles / 2570 kilometers, and travel time by car is about 27 hours 30 minutes.
Helena Regional Airport – Fort Smith Regional Airport
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Distance from Helena to Fort Smith
There are several ways to calculate the distance from Helena to Fort Smith. 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 Helena to Fort Smith?
The estimated flight time from Helena Regional Airport to Fort Smith Regional Airport is 2 hours and 46 minutes.
What is the time difference between Helena and Fort Smith?
The time difference between Helena and Fort Smith is 1 hour. Fort Smith is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Fort Smith Regional Airport (FSM)
On average, flying from Helena to Fort Smith 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 Helena to Fort Smith
See the map of the shortest flight path between Helena Regional Airport (HLN) and Fort Smith Regional Airport (FSM).
Airport information
| Origin | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″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 |