How far is Helena, MT, from Unalaska, AK?
The distance between Unalaska (Unalaska Airport) and Helena (Helena Regional Airport) is 2407 miles / 3873 kilometers / 2091 nautical miles.
Unalaska Airport – Helena Regional Airport
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Distance from Unalaska to Helena
There are several ways to calculate the distance from Unalaska to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 2406.823 miles
- 3873.406 kilometers
- 2091.472 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- 2399.681 miles
- 3861.913 kilometers
- 2085.266 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 Unalaska to Helena?
The estimated flight time from Unalaska Airport to Helena Regional Airport is 5 hours and 3 minutes.
What is the time difference between Unalaska and Helena?
The time difference between Unalaska and Helena is 3 hours. Helena is 3 hours ahead of Unalaska.
Flight carbon footprint between Unalaska Airport (DUT) and Helena Regional Airport (HLN)
On average, flying from Unalaska to Helena generates about 264 kg of CO2 per passenger, and 264 kilograms equals 583 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Unalaska to Helena
See the map of the shortest flight path between Unalaska Airport (DUT) and Helena Regional Airport (HLN).
Airport information
| Origin | Unalaska Airport |
|---|---|
| City: | Unalaska, AK |
| Country: | United States  |
| IATA Code: | DUT |
| ICAO Code: | PADU |
| Coordinates: | 53°54′0″N, 166°32′38″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 |