How far is Gillette, WY, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Gillette (Gillette–Campbell County Airport) is 350 miles / 563 kilometers / 304 nautical miles.
The driving distance from Helena (HLN) to Gillette (GCC) is 474 miles / 763 kilometers, and travel time by car is about 8 hours 19 minutes.
Helena Regional Airport – Gillette–Campbell County Airport
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Distance from Helena to Gillette
There are several ways to calculate the distance from Helena to Gillette. Here are two standard methods:
Vincenty's formula (applied above)- 349.609 miles
- 562.641 kilometers
- 303.802 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- 348.854 miles
- 561.426 kilometers
- 303.146 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 Gillette?
The estimated flight time from Helena Regional Airport to Gillette–Campbell County Airport is 1 hour and 9 minutes.
What is the time difference between Helena and Gillette?
Flight carbon footprint between Helena Regional Airport (HLN) and Gillette–Campbell County Airport (GCC)
On average, flying from Helena to Gillette generates about 76 kg of CO2 per passenger, and 76 kilograms equals 169 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 Gillette
See the map of the shortest flight path between Helena Regional Airport (HLN) and Gillette–Campbell County Airport (GCC).
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 | Gillette–Campbell County Airport |
|---|---|
| City: | Gillette, WY |
| Country: | United States |
| IATA Code: | GCC |
| ICAO Code: | KGCC |
| Coordinates: | 44°20′56″N, 105°32′20″W |