How far is Helena, MT, from Alamosa, CO?
The distance between Alamosa (San Luis Valley Regional Airport) and Helena (Helena Regional Airport) is 706 miles / 1137 kilometers / 614 nautical miles.
The driving distance from Alamosa (ALS) to Helena (HLN) is 1027 miles / 1653 kilometers, and travel time by car is about 18 hours 5 minutes.
San Luis Valley Regional Airport – Helena Regional Airport
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Distance from Alamosa to Helena
There are several ways to calculate the distance from Alamosa to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 706.416 miles
- 1136.867 kilometers
- 613.859 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- 706.672 miles
- 1137.279 kilometers
- 614.081 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 Alamosa to Helena?
The estimated flight time from San Luis Valley Regional Airport to Helena Regional Airport is 1 hour and 50 minutes.
What is the time difference between Alamosa and Helena?
Flight carbon footprint between San Luis Valley Regional Airport (ALS) and Helena Regional Airport (HLN)
On average, flying from Alamosa to Helena generates about 125 kg of CO2 per passenger, and 125 kilograms equals 276 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Alamosa to Helena
See the map of the shortest flight path between San Luis Valley Regional Airport (ALS) and Helena Regional Airport (HLN).
Airport information
| Origin | San Luis Valley Regional Airport |
|---|---|
| City: | Alamosa, CO |
| Country: | United States  |
| IATA Code: | ALS |
| ICAO Code: | KALS |
| Coordinates: | 37°26′5″N, 105°52′1″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 |