How far is Adak Island, AK, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Adak Island (Adak Airport) is 2851 miles / 4588 kilometers / 2477 nautical miles.
Helena Regional Airport – Adak Airport
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Distance from Helena to Adak Island
There are several ways to calculate the distance from Helena to Adak Island. Here are two standard methods:
Vincenty's formula (applied above)- 2850.707 miles
- 4587.768 kilometers
- 2477.197 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- 2842.203 miles
- 4574.082 kilometers
- 2469.807 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 Adak Island?
The estimated flight time from Helena Regional Airport to Adak Airport is 5 hours and 53 minutes.
What is the time difference between Helena and Adak Island?
The time difference between Helena and Adak Island is 3 hours. Adak Island is 3 hours behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Adak Airport (ADK)
On average, flying from Helena to Adak Island generates about 316 kg of CO2 per passenger, and 316 kilograms equals 698 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Helena to Adak Island
See the map of the shortest flight path between Helena Regional Airport (HLN) and Adak Airport (ADK).
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 | Adak Airport |
|---|---|
| City: | Adak Island, AK |
| Country: | United States |
| IATA Code: | ADK |
| ICAO Code: | PADK |
| Coordinates: | 51°52′40″N, 176°38′45″W |