How far is Alpena, MI, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Alpena (Alpena County Regional Airport) is 1369 miles / 2202 kilometers / 1189 nautical miles.
The driving distance from Helena (HLN) to Alpena (APN) is 1584 miles / 2550 kilometers, and travel time by car is about 30 hours 47 minutes.
Helena Regional Airport – Alpena County Regional Airport
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Distance from Helena to Alpena
There are several ways to calculate the distance from Helena to Alpena. Here are two standard methods:
Vincenty's formula (applied above)- 1368.552 miles
- 2202.471 kilometers
- 1189.239 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- 1364.693 miles
- 2196.260 kilometers
- 1185.886 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 Alpena?
The estimated flight time from Helena Regional Airport to Alpena County Regional Airport is 3 hours and 5 minutes.
What is the time difference between Helena and Alpena?
The time difference between Helena and Alpena is 2 hours. Alpena is 2 hours ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Alpena County Regional Airport (APN)
On average, flying from Helena to Alpena generates about 171 kg of CO2 per passenger, and 171 kilograms equals 377 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 Alpena
See the map of the shortest flight path between Helena Regional Airport (HLN) and Alpena County Regional Airport (APN).
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 | Alpena County Regional Airport |
|---|---|
| City: | Alpena, MI |
| Country: | United States |
| IATA Code: | APN |
| ICAO Code: | KAPN |
| Coordinates: | 45°4′41″N, 83°33′37″W |