How far is Helena from Spokane?
There are several ways to calculate distances between Spokane and Helena. Here are two common methods:Vincenty's formula (applied above)
- 270.905 miles
- 435.979 kilometers
- 235.410 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
- 270.172 miles
- 434.799 kilometers
- 234.773 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 Helena Regional Airport (HLN) is 1 hour 0 minutes.
Time difference and current local times
The time difference between Spokane and Helena is 1 hour. Helena is 1 hour ahead of Spokane.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 62 kg (138 pounds).
Spokane to Helena flight map.
Frequent Flyer Miles Calculator
Spokane (GEG) → Helena (HLN).