How far is Boise, ID, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Boise (Boise Airport) is 295 miles / 475 kilometers / 256 nautical miles.
The driving distance from Helena (HLN) to Boise (BOI) is 549 miles / 884 kilometers, and travel time by car is about 8 hours 46 minutes.
Helena Regional Airport – Boise Airport
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Distance from Helena to Boise
There are several ways to calculate the distance from Helena to Boise. Here are two standard methods:
Vincenty's formula (applied above)- 295.148 miles
- 474.994 kilometers
- 256.477 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- 294.824 miles
- 474.474 kilometers
- 256.195 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 Boise?
The estimated flight time from Helena Regional Airport to Boise Airport is 1 hour and 3 minutes.
What is the time difference between Helena and Boise?
Flight carbon footprint between Helena Regional Airport (HLN) and Boise Airport (BOI)
On average, flying from Helena to Boise generates about 68 kg of CO2 per passenger, and 68 kilograms equals 151 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 Boise
See the map of the shortest flight path between Helena Regional Airport (HLN) and Boise Airport (BOI).
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 | Boise Airport |
|---|---|
| City: | Boise, ID |
| Country: | United States |
| IATA Code: | BOI |
| ICAO Code: | KBOI |
| Coordinates: | 43°33′51″N, 116°13′22″W |