Map of flight path and driving directions from Des Moines to Helena.
Shortest flight path between Des Moines International Airport (DSM) and Helena Regional Airport (HLN).
How far is Helena from Des Moines?
There are several ways to calculate distances between Des Moines and Helena. Here are two common methods:Vincenty's formula (applied above)
- 974.061 miles
- 1567.600 kilometers
- 846.436 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
- 971.835 miles
- 1564.017 kilometers
- 844.502 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 Des Moines and Helena is 1 hour. Helena is 1 hour behind Des Moines.
Des Moines, IA
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 149 kg (329 pounds).
Frequent Flyer Miles Calculator
Des Moines (DSM) → Helena (HLN).