Map of flight path and driving directions from Redmond to Helena.
Shortest flight path between Roberts Field (RDM) and Helena Regional Airport (HLN).
How far is Helena from Redmond?
There are several ways to calculate distances between Redmond and Helena. Here are two common methods:Vincenty's formula (applied above)
- 474.085 miles
- 762.967 kilometers
- 411.969 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
- 472.935 miles
- 761.116 kilometers
- 410.969 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).
Time difference and current local times
The time difference between Redmond and Helena is 1 hour. Helena is 1 hour ahead of Redmond.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 95 kg (209 pounds).
Frequent Flyer Miles Calculator
Redmond (RDM) → Helena (HLN).