How far is St. George Island, AK, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and St. George Island (St. George Airport) is 2483 miles / 3995 kilometers / 2157 nautical miles.
Great Falls International Airport – St. George Airport
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Distance from Great Falls to St. George Island
There are several ways to calculate the distance from Great Falls to St. George Island. Here are two standard methods:
Vincenty's formula (applied above)- 2482.674 miles
- 3995.476 kilometers
- 2157.384 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- 2475.173 miles
- 3983.404 kilometers
- 2150.866 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 St. George Island?
The estimated flight time from Great Falls International Airport to St. George Airport is 5 hours and 12 minutes.
What is the time difference between Great Falls and St. George Island?
Flight carbon footprint between Great Falls International Airport (GTF) and St. George Airport (STG)
On average, flying from Great Falls to St. George Island generates about 273 kg of CO2 per passenger, and 273 kilograms equals 602 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Great Falls to St. George Island
See the map of the shortest flight path between Great Falls International Airport (GTF) and St. George Airport (STG).
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 | 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 |