How far is Helena, MT, from Petersburg, AK?
The distance between Petersburg (Petersburg James A. Johnson Airport) and Helena (Helena Regional Airport) is 1136 miles / 1828 kilometers / 987 nautical miles.
The driving distance from Petersburg (PSG) to Helena (HLN) is 1597 miles / 2570 kilometers, and travel time by car is about 42 hours 49 minutes.
Petersburg James A. Johnson Airport – Helena Regional Airport
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Distance from Petersburg to Helena
There are several ways to calculate the distance from Petersburg to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1135.568 miles
- 1827.520 kilometers
- 986.782 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- 1133.099 miles
- 1823.546 kilometers
- 984.636 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 Petersburg to Helena?
The estimated flight time from Petersburg James A. Johnson Airport to Helena Regional Airport is 2 hours and 39 minutes.
What is the time difference between Petersburg and Helena?
The time difference between Petersburg and Helena is 2 hours. Helena is 2 hours ahead of Petersburg.
Flight carbon footprint between Petersburg James A. Johnson Airport (PSG) and Helena Regional Airport (HLN)
On average, flying from Petersburg to Helena generates about 159 kg of CO2 per passenger, and 159 kilograms equals 350 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Petersburg to Helena
See the map of the shortest flight path between Petersburg James A. Johnson Airport (PSG) and Helena Regional Airport (HLN).
Airport information
| Origin | Petersburg James A. Johnson Airport |
|---|---|
| City: | Petersburg, AK |
| Country: | United States  |
| IATA Code: | PSG |
| ICAO Code: | PAPG |
| Coordinates: | 56°48′6″N, 132°56′42″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 |