How far is Idaho Falls, ID, from Spokane, WA?
The distance between Spokane (Spokane International Airport) and Idaho Falls (Idaho Falls Regional Airport) is 388 miles / 624 kilometers / 337 nautical miles.
The driving distance from Spokane (GEG) to Idaho Falls (IDA) is 514 miles / 828 kilometers, and travel time by car is about 8 hours 35 minutes.
Spokane International Airport – Idaho Falls Regional Airport
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Distance from Spokane to Idaho Falls
There are several ways to calculate the distance from Spokane to Idaho Falls. Here are two standard methods:
Vincenty's formula (applied above)- 387.882 miles
- 624.236 kilometers
- 337.061 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- 387.470 miles
- 623.573 kilometers
- 336.703 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 Spokane to Idaho Falls?
The estimated flight time from Spokane International Airport to Idaho Falls Regional Airport is 1 hour and 14 minutes.
What is the time difference between Spokane and Idaho Falls?
Flight carbon footprint between Spokane International Airport (GEG) and Idaho Falls Regional Airport (IDA)
On average, flying from Spokane to Idaho Falls generates about 82 kg of CO2 per passenger, and 82 kilograms equals 181 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Spokane to Idaho Falls
See the map of the shortest flight path between Spokane International Airport (GEG) and Idaho Falls Regional Airport (IDA).
Airport information
| Origin | Spokane International Airport |
|---|---|
| City: | Spokane, WA |
| Country: | United States  |
| IATA Code: | GEG |
| ICAO Code: | KGEG |
| Coordinates: | 47°37′11″N, 117°32′2″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 |