How far is Unalaska, AK, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Unalaska (Unalaska Airport) is 2407 miles / 3873 kilometers / 2091 nautical miles.
Helena Regional Airport – Unalaska Airport
Search flights
Distance from Helena to Unalaska
There are several ways to calculate the distance from Helena to Unalaska. 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 Helena to Unalaska?
The estimated flight time from Helena Regional Airport to Unalaska Airport is 5 hours and 3 minutes.
What is the time difference between Helena and Unalaska?
The time difference between Helena and Unalaska is 3 hours. Unalaska is 3 hours behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Unalaska Airport (DUT)
On average, flying from Helena to Unalaska 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 Helena to Unalaska
See the map of the shortest flight path between Helena Regional Airport (HLN) and Unalaska Airport (DUT).
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 | Unalaska Airport |
|---|---|
| City: | Unalaska, AK |
| Country: | United States |
| IATA Code: | DUT |
| ICAO Code: | PADU |
| Coordinates: | 53°54′0″N, 166°32′38″W |