How far is Idaho Falls from Spokane?
There are several ways to calculate distances between Spokane and Idaho Falls. Here are two common 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 earth.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).
Estimated flight time from Spokane International Airport (GEG) to Idaho Falls Regional Airport (IDA) is 1 hour 14 minutes.
Time difference and current local times
The time difference between Spokane and Idaho Falls is 1 hour. Idaho Falls is 1 hour ahead of Spokane.
Idaho Falls, ID
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 81 kg (180 pounds).
Spokane to Idaho Falls flight map.
Frequent Flyer Miles Calculator
Spokane (GEG) → Idaho Falls (IDA).