How far is Helena, MT, from Twin Falls, ID?
The distance between Twin Falls (Magic Valley Regional Airport) and Helena (Helena Regional Airport) is 310 miles / 500 kilometers / 270 nautical miles.
The driving distance from Twin Falls (TWF) to Helena (HLN) is 437 miles / 703 kilometers, and travel time by car is about 7 hours 17 minutes.
Magic Valley Regional Airport – Helena Regional Airport
Search flights
Distance from Twin Falls to Helena
There are several ways to calculate the distance from Twin Falls to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 310.482 miles
- 499.673 kilometers
- 269.802 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- 310.516 miles
- 499.728 kilometers
- 269.831 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 Twin Falls to Helena?
The estimated flight time from Magic Valley Regional Airport to Helena Regional Airport is 1 hour and 5 minutes.
What is the time difference between Twin Falls and Helena?
Flight carbon footprint between Magic Valley Regional Airport (TWF) and Helena Regional Airport (HLN)
On average, flying from Twin Falls to Helena generates about 71 kg of CO2 per passenger, and 71 kilograms equals 156 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Twin Falls to Helena
See the map of the shortest flight path between Magic Valley Regional Airport (TWF) and Helena Regional Airport (HLN).
Airport information
| Origin | Magic Valley Regional Airport |
|---|---|
| City: | Twin Falls, ID |
| Country: | United States  |
| IATA Code: | TWF |
| ICAO Code: | KTWF |
| Coordinates: | 42°28′54″N, 114°29′16″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 |