Map of flight path and driving directions from Casper to Helena.
Shortest flight path between Casper–Natrona County International Airport (CPR) and Helena Regional Airport (HLN).
How far is Helena from Casper?
There are several ways to calculate distances between Casper and Helena. Here are two common methods:Vincenty's formula (applied above)
- 372.602 miles
- 599.645 kilometers
- 323.783 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
- 372.162 miles
- 598.936 kilometers
- 323.400 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
There is no time difference between Casper and Helena.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 80 kg (176 pounds).
Frequent Flyer Miles Calculator
Casper (CPR) → Helena (HLN).