How far is St George, UT, from Helena, MT?
The distance between Helena (Helena Regional Airport) and St George (St. George Municipal Airport) is 665 miles / 1070 kilometers / 578 nautical miles.
The driving distance from Helena (HLN) to St George (SGU) is 791 miles / 1273 kilometers, and travel time by car is about 13 hours 1 minutes.
Helena Regional Airport – St. George Municipal Airport
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Distance from Helena to St George
There are several ways to calculate the distance from Helena to St George. Here are two standard methods:
Vincenty's formula (applied above)- 665.162 miles
- 1070.474 kilometers
- 578.010 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- 665.875 miles
- 1071.623 kilometers
- 578.630 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?
The estimated flight time from Helena Regional Airport to St. George Municipal Airport is 1 hour and 45 minutes.
What is the time difference between Helena and St George?
Flight carbon footprint between Helena Regional Airport (HLN) and St. George Municipal Airport (SGU)
On average, flying from Helena to St George generates about 121 kg of CO2 per passenger, and 121 kilograms equals 266 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Helena to St George
See the map of the shortest flight path between Helena Regional Airport (HLN) and St. George Municipal Airport (SGU).
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 Municipal Airport |
|---|---|
| City: | St George, UT |
| Country: | United States |
| IATA Code: | SGU |
| ICAO Code: | KSGU |
| Coordinates: | 37°2′11″N, 113°30′37″W |