How far is Alamosa, CO, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Alamosa (San Luis Valley Regional Airport) is 706 miles / 1137 kilometers / 614 nautical miles.
The driving distance from Helena (HLN) to Alamosa (ALS) is 1028 miles / 1654 kilometers, and travel time by car is about 18 hours 10 minutes.
Helena Regional Airport – San Luis Valley Regional Airport
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Distance from Helena to Alamosa
There are several ways to calculate the distance from Helena to Alamosa. 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 Helena to Alamosa?
The estimated flight time from Helena Regional Airport to San Luis Valley Regional Airport is 1 hour and 50 minutes.
What is the time difference between Helena and Alamosa?
Flight carbon footprint between Helena Regional Airport (HLN) and San Luis Valley Regional Airport (ALS)
On average, flying from Helena to Alamosa 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 Helena to Alamosa
See the map of the shortest flight path between Helena Regional Airport (HLN) and San Luis Valley Regional Airport (ALS).
Airport information
| Origin | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |
| Destination | 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 |