How far is Helena, MT, from Idaho Falls, ID?
The distance between Idaho Falls (Idaho Falls Regional Airport) and Helena (Helena Regional Airport) is 214 miles / 344 kilometers / 186 nautical miles.
The driving distance from Idaho Falls (IDA) to Helena (HLN) is 273 miles / 440 kilometers, and travel time by car is about 4 hours 28 minutes.
Idaho Falls Regional Airport – Helena Regional Airport
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Distance from Idaho Falls to Helena
There are several ways to calculate the distance from Idaho Falls to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 213.575 miles
- 343.715 kilometers
- 185.591 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- 213.694 miles
- 343.907 kilometers
- 185.695 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 Helena?
The estimated flight time from Idaho Falls Regional Airport to Helena Regional Airport is 54 minutes.
What is the time difference between Idaho Falls and Helena?
Flight carbon footprint between Idaho Falls Regional Airport (IDA) and Helena Regional Airport (HLN)
On average, flying from Idaho Falls to Helena generates about 56 kg of CO2 per passenger, and 56 kilograms equals 124 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 Helena
See the map of the shortest flight path between Idaho Falls Regional Airport (IDA) and Helena Regional Airport (HLN).
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 | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |