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How far is St George, UT, from Idaho Falls, ID?

The distance between Idaho Falls (Idaho Falls Regional Airport) and St George (St. George Municipal Airport) is 453 miles / 730 kilometers / 394 nautical miles.

The driving distance from Idaho Falls (IDA) to St George (SGU) is 521 miles / 839 kilometers, and travel time by car is about 8 hours 43 minutes.

Idaho Falls Regional Airport – St. George Municipal Airport

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453
Miles
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730
Kilometers
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394
Nautical miles

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Distance from Idaho Falls to St George

There are several ways to calculate the distance from Idaho Falls to St George. Here are two standard methods:

Vincenty's formula (applied above)
  • 453.382 miles
  • 729.648 kilometers
  • 393.978 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
  • 453.965 miles
  • 730.586 kilometers
  • 394.485 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 Idaho Falls to St George?

The estimated flight time from Idaho Falls Regional Airport to St. George Municipal Airport is 1 hour and 21 minutes.

What is the time difference between Idaho Falls and St George?

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

Flight carbon footprint between Idaho Falls Regional Airport (IDA) and St. George Municipal Airport (SGU)

On average, flying from Idaho Falls to St George generates about 92 kg of CO2 per passenger, and 92 kilograms equals 202 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Idaho Falls to St George

See the map of the shortest flight path between Idaho Falls Regional Airport (IDA) and St. George Municipal Airport (SGU).

Airport information

Origin Idaho Falls Regional Airport
City: Idaho Falls, ID
Country: United States Flag of United States
IATA Code: IDA
ICAO Code: KIDA
Coordinates: 43°30′52″N, 112°4′15″W
Destination 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