Air Miles Calculator

Distance between Great Falls, MT (GTF) and St George, UT (SGU)

Distance from Great Falls to St George (Great Falls International Airport – St. George Municipal Airport) is 729 miles / 1174 kilometers / 634 nautical miles.

How far is St George from Great Falls?

There are several ways to calculate distances between Great Falls and St George. Here are two common 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 earth.

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).

Flight duration

Estimated flight time from Great Falls International Airport (GTF) to St. George Municipal Airport (SGU) is 1 hour 52 minutes.

Time difference and current local times

There is no time difference between Great Falls and St George.

Time Difference

Great Falls
St George

Great Falls, MT

 MST

St George, UT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 128 kg (282 pounds).

Airport information


A Great Falls International Airport
City: Great Falls, MT
Country: United States Flag of United States
IATA Code: GTF
ICAO Code: KGTF
Coordinates: 47°28′55″N, 111°22′15″W

B St. George Municipal Airport
City: St George, UT
Country: United States Flag of United States
IATA Code: SGU
ICAO Code: KSGU
Coordinates: 37°2′11″N, 113°30′37″W

Map

Great Falls to St George flight map.

Frequent Flyer Miles Calculator

Great Falls (GTF) → St George (SGU).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
729
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
729

Round trip?