How far is Helena, MT, from Boise, ID?
The distance between Boise (Boise Airport) and Helena (Helena Regional Airport) is 295 miles / 475 kilometers / 256 nautical miles.
The driving distance from Boise (BOI) to Helena (HLN) is 549 miles / 883 kilometers, and travel time by car is about 8 hours 45 minutes.
Boise Airport – Helena Regional Airport
Search flights
Distance from Boise to Helena
There are several ways to calculate the distance from Boise to Helena. 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 Boise to Helena?
The estimated flight time from Boise Airport to Helena Regional Airport is 1 hour and 3 minutes.
What is the time difference between Boise and Helena?
Flight carbon footprint between Boise Airport (BOI) and Helena Regional Airport (HLN)
On average, flying from Boise to Helena 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 Boise to Helena
See the map of the shortest flight path between Boise Airport (BOI) and Helena Regional Airport (HLN).
Airport information
| Origin | Boise Airport |
|---|---|
| City: | Boise, ID |
| Country: | United States  |
| IATA Code: | BOI |
| ICAO Code: | KBOI |
| Coordinates: | 43°33′51″N, 116°13′22″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 |