How far is Idaho Falls, ID, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Idaho Falls (Idaho Falls Regional Airport) is 214 miles / 344 kilometers / 186 nautical miles.
The driving distance from Helena (HLN) to Idaho Falls (IDA) is 272 miles / 438 kilometers, and travel time by car is about 4 hours 26 minutes.
Helena Regional Airport – Idaho Falls Regional Airport
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Distance from Helena to Idaho Falls
There are several ways to calculate the distance from Helena to Idaho Falls. 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 Helena to Idaho Falls?
The estimated flight time from Helena Regional Airport to Idaho Falls Regional Airport is 54 minutes.
What is the time difference between Helena and Idaho Falls?
Flight carbon footprint between Helena Regional Airport (HLN) and Idaho Falls Regional Airport (IDA)
On average, flying from Helena to Idaho Falls 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 Helena to Idaho Falls
See the map of the shortest flight path between Helena Regional Airport (HLN) and Idaho Falls Regional Airport (IDA).
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 | 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 |