How far is Great Falls, MT, from St George, UT?
The distance between St George (St. George Municipal Airport) and Great Falls (Great Falls International Airport) is 729 miles / 1174 kilometers / 634 nautical miles.
The driving distance from St George (SGU) to Great Falls (GTF) is 879 miles / 1414 kilometers, and travel time by car is about 14 hours 44 minutes.
St. George Municipal Airport – Great Falls International Airport
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Distance from St George to Great Falls
There are several ways to calculate the distance from St George to Great Falls. 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 St George to Great Falls?
The estimated flight time from St. George Municipal Airport to Great Falls International Airport is 1 hour and 52 minutes.
What is the time difference between St George and Great Falls?
There is no time difference between St George and Great Falls.
Flight carbon footprint between St. George Municipal Airport (SGU) and Great Falls International Airport (GTF)
On average, flying from St George to Great Falls 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 St George to Great Falls
See the map of the shortest flight path between St. George Municipal Airport (SGU) and Great Falls International Airport (GTF).
Airport information
| Origin | 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 |
| Destination | 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 |