How far is Helena, MT, from Houston, TX?
The distance between Houston (Houston William P. Hobby Airport) and Helena (Helena Regional Airport) is 1476 miles / 2375 kilometers / 1282 nautical miles.
The driving distance from Houston (HOU) to Helena (HLN) is 1830 miles / 2945 kilometers, and travel time by car is about 32 hours 33 minutes.
Houston William P. Hobby Airport – Helena Regional Airport
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Distance from Houston to Helena
There are several ways to calculate the distance from Houston to Helena. Here are two standard 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 planet.
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).
How long does it take to fly from Houston to Helena?
The estimated flight time from Houston William P. Hobby Airport to Helena Regional Airport is 3 hours and 17 minutes.
What is the time difference between Houston and Helena?
The time difference between Houston and Helena is 1 hour. Helena is 1 hour behind Houston.
Flight carbon footprint between Houston William P. Hobby Airport (HOU) and Helena Regional Airport (HLN)
On average, flying from Houston to Helena generates about 178 kg of CO2 per passenger, and 178 kilograms equals 392 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Houston to Helena
See the map of the shortest flight path between Houston William P. Hobby Airport (HOU) and Helena Regional Airport (HLN).
Airport information
| Origin | Houston William P. Hobby Airport |
|---|---|
| City: | Houston, TX |
| Country: | United States  |
| IATA Code: | HOU |
| ICAO Code: | KHOU |
| Coordinates: | 29°38′43″N, 95°16′44″W |
| Destination | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |