How far is Helena, MT, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Helena (Helena Regional Airport) is 67 miles / 108 kilometers / 58 nautical miles.
The driving distance from Great Falls (GTF) to Helena (HLN) is 89 miles / 144 kilometers, and travel time by car is about 1 hour 50 minutes.
Great Falls International Airport – Helena Regional Airport
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Distance from Great Falls to Helena
There are several ways to calculate the distance from Great Falls to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 67.009 miles
- 107.840 kilometers
- 58.229 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- 66.984 miles
- 107.800 kilometers
- 58.208 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 Great Falls to Helena?
The estimated flight time from Great Falls International Airport to Helena Regional Airport is 37 minutes.
What is the time difference between Great Falls and Helena?
Flight carbon footprint between Great Falls International Airport (GTF) and Helena Regional Airport (HLN)
On average, flying from Great Falls to Helena generates about 35 kg of CO2 per passenger, and 35 kilograms equals 77 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Great Falls to Helena
See the map of the shortest flight path between Great Falls International Airport (GTF) and Helena Regional Airport (HLN).
Airport information
| Origin | Great Falls International Airport |
|---|---|
| City: | Great Falls, MT |
| Country: | United States  |
| IATA Code: | GTF |
| ICAO Code: | KGTF |
| Coordinates: | 47°28′55″N, 111°22′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 |
Airlines flying from Great Falls (GTF) to Helena (HLN)
| Alaska Airlines |