How far is St. George Island, AK, from Helena, MT?
The distance between Helena (Helena Regional Airport) and St. George Island (St. George Airport) is 2496 miles / 4017 kilometers / 2169 nautical miles.
Helena Regional Airport – St. George Airport
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Distance from Helena to St. George Island
There are several ways to calculate the distance from Helena to St. George Island. Here are two standard methods:
Vincenty's formula (applied above)- 2496.218 miles
- 4017.274 kilometers
- 2169.154 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- 2488.829 miles
- 4005.382 kilometers
- 2162.733 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 St. George Island?
The estimated flight time from Helena Regional Airport to St. George Airport is 5 hours and 13 minutes.
What is the time difference between Helena and St. George Island?
Flight carbon footprint between Helena Regional Airport (HLN) and St. George Airport (STG)
On average, flying from Helena to St. George Island generates about 275 kg of CO2 per passenger, and 275 kilograms equals 606 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Helena to St. George Island
See the map of the shortest flight path between Helena Regional Airport (HLN) and St. George Airport (STG).
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 | St. George Airport |
|---|---|
| City: | St. George Island, AK |
| Country: | United States |
| IATA Code: | STG |
| ICAO Code: | PAPB |
| Coordinates: | 56°34′38″N, 169°39′49″W |