How far is Helena, MT, from Grand Junction, CO?
The distance between Grand Junction (Grand Junction Regional Airport) and Helena (Helena Regional Airport) is 545 miles / 878 kilometers / 474 nautical miles.
The driving distance from Grand Junction (GJT) to Helena (HLN) is 766 miles / 1233 kilometers, and travel time by car is about 12 hours 59 minutes.
Grand Junction Regional Airport – Helena Regional Airport
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Distance from Grand Junction to Helena
There are several ways to calculate the distance from Grand Junction to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 545.479 miles
- 877.863 kilometers
- 474.008 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- 545.791 miles
- 878.366 kilometers
- 474.280 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 Grand Junction to Helena?
The estimated flight time from Grand Junction Regional Airport to Helena Regional Airport is 1 hour and 31 minutes.
What is the time difference between Grand Junction and Helena?
There is no time difference between Grand Junction and Helena.
Flight carbon footprint between Grand Junction Regional Airport (GJT) and Helena Regional Airport (HLN)
On average, flying from Grand Junction to Helena generates about 105 kg of CO2 per passenger, and 105 kilograms equals 232 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Grand Junction to Helena
See the map of the shortest flight path between Grand Junction Regional Airport (GJT) and Helena Regional Airport (HLN).
Airport information
| Origin | Grand Junction Regional Airport |
|---|---|
| City: | Grand Junction, CO |
| Country: | United States  |
| IATA Code: | GJT |
| ICAO Code: | KGJT |
| Coordinates: | 39°7′20″N, 108°31′37″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 |