How far is Helena, MT, from Alpena, MI?
The distance between Alpena (Alpena County Regional Airport) and Helena (Helena Regional Airport) is 1369 miles / 2202 kilometers / 1189 nautical miles.
The driving distance from Alpena (APN) to Helena (HLN) is 1585 miles / 2551 kilometers, and travel time by car is about 30 hours 50 minutes.
Alpena County Regional Airport – Helena Regional Airport
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Distance from Alpena to Helena
There are several ways to calculate the distance from Alpena to Helena. 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 Alpena to Helena?
The estimated flight time from Alpena County Regional Airport to Helena Regional Airport is 3 hours and 5 minutes.
What is the time difference between Alpena and Helena?
The time difference between Alpena and Helena is 2 hours. Helena is 2 hours behind Alpena.
Flight carbon footprint between Alpena County Regional Airport (APN) and Helena Regional Airport (HLN)
On average, flying from Alpena to Helena 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 Alpena to Helena
See the map of the shortest flight path between Alpena County Regional Airport (APN) and Helena Regional Airport (HLN).
Airport information
| Origin | 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 |
| 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 |