How far is Helena from Houston?
There are several ways to calculate distances between Houston and Helena. Here are two common methods:Vincenty's formula (applied above)
- 1475.560 miles
- 2374.684 kilometers
- 1282.227 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
- 1475.881 miles
- 2375.201 kilometers
- 1282.506 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 William P. Hobby Airport (HOU) to Helena Regional Airport (HLN) is 3 hours 17 minutes.
Time difference and current local times
The time difference between Houston and Helena is 1 hour. Helena is 1 hour behind Houston.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 169 kg (372 pounds).
Houston to Helena flight map.
Frequent Flyer Miles Calculator
Houston (HOU) → Helena (HLN).