How far is Helena, MT, from Annette, AK?
The distance between Annette (Annette Island Airport) and Helena (Helena Regional Airport) is 1031 miles / 1660 kilometers / 896 nautical miles.
The driving distance from Annette (ANN) to Helena (HLN) is 1450 miles / 2334 kilometers, and travel time by car is about 33 hours 43 minutes.
Annette Island Airport – Helena Regional Airport
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Distance from Annette to Helena
There are several ways to calculate the distance from Annette to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1031.479 miles
- 1660.005 kilometers
- 896.331 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- 1029.143 miles
- 1656.246 kilometers
- 894.301 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 Annette to Helena?
The estimated flight time from Annette Island Airport to Helena Regional Airport is 2 hours and 27 minutes.
What is the time difference between Annette and Helena?
The time difference between Annette and Helena is 2 hours. Helena is 2 hours ahead of Annette.
Flight carbon footprint between Annette Island Airport (ANN) and Helena Regional Airport (HLN)
On average, flying from Annette to Helena generates about 153 kg of CO2 per passenger, and 153 kilograms equals 337 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Annette to Helena
See the map of the shortest flight path between Annette Island Airport (ANN) and Helena Regional Airport (HLN).
Airport information
| Origin | Annette Island Airport |
|---|---|
| City: | Annette, AK |
| Country: | United States  |
| IATA Code: | ANN |
| ICAO Code: | PANT |
| Coordinates: | 55°2′32″N, 131°34′19″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 |