How far is St George, UT, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and St George (St. George Municipal Airport) is 729 miles / 1174 kilometers / 634 nautical miles.
The driving distance from Great Falls (GTF) to St George (SGU) is 878 miles / 1413 kilometers, and travel time by car is about 14 hours 43 minutes.
Great Falls International Airport – St. George Municipal Airport
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Distance from Great Falls to St George
There are several ways to calculate the distance from Great Falls to St George. Here are two standard methods:
Vincenty's formula (applied above)- 729.183 miles
- 1173.506 kilometers
- 633.643 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- 729.887 miles
- 1174.640 kilometers
- 634.255 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?
The estimated flight time from Great Falls International Airport to St. George Municipal Airport is 1 hour and 52 minutes.
What is the time difference between Great Falls and St George?
There is no time difference between Great Falls and St George.
Flight carbon footprint between Great Falls International Airport (GTF) and St. George Municipal Airport (SGU)
On average, flying from Great Falls to St George generates about 128 kg of CO2 per passenger, and 128 kilograms equals 282 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 St George
See the map of the shortest flight path between Great Falls International Airport (GTF) and St. George Municipal Airport (SGU).
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 Municipal Airport |
|---|---|
| City: | St George, UT |
| Country: | United States |
| IATA Code: | SGU |
| ICAO Code: | KSGU |
| Coordinates: | 37°2′11″N, 113°30′37″W |