How far is Idaho Falls, ID, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Idaho Falls (Idaho Falls Regional Airport) is 276 miles / 444 kilometers / 240 nautical miles.
The driving distance from Great Falls (GTF) to Idaho Falls (IDA) is 359 miles / 578 kilometers, and travel time by car is about 6 hours 8 minutes.
Great Falls International Airport – Idaho Falls Regional Airport
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Distance from Great Falls to Idaho Falls
There are several ways to calculate the distance from Great Falls to Idaho Falls. Here are two standard methods:
Vincenty's formula (applied above)- 276.087 miles
- 444.319 kilometers
- 239.913 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- 276.206 miles
- 444.511 kilometers
- 240.017 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 Idaho Falls?
The estimated flight time from Great Falls International Airport to Idaho Falls Regional Airport is 1 hour and 1 minutes.
What is the time difference between Great Falls and Idaho Falls?
There is no time difference between Great Falls and Idaho Falls.
Flight carbon footprint between Great Falls International Airport (GTF) and Idaho Falls Regional Airport (IDA)
On average, flying from Great Falls to Idaho Falls generates about 66 kg of CO2 per passenger, and 66 kilograms equals 145 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 Idaho Falls
See the map of the shortest flight path between Great Falls International Airport (GTF) and Idaho Falls Regional Airport (IDA).
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 | Idaho Falls Regional Airport |
|---|---|
| City: | Idaho Falls, ID |
| Country: | United States |
| IATA Code: | IDA |
| ICAO Code: | KIDA |
| Coordinates: | 43°30′52″N, 112°4′15″W |