How far is Petersburg, AK, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Petersburg (Petersburg James A. Johnson Airport) is 1114 miles / 1792 kilometers / 968 nautical miles.
The driving distance from Great Falls (GTF) to Petersburg (PSG) is 1517 miles / 2442 kilometers, and travel time by car is about 41 hours 53 minutes.
Great Falls International Airport – Petersburg James A. Johnson Airport
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Distance from Great Falls to Petersburg
There are several ways to calculate the distance from Great Falls to Petersburg. Here are two standard methods:
Vincenty's formula (applied above)- 1113.628 miles
- 1792.210 kilometers
- 967.716 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- 1111.014 miles
- 1788.004 kilometers
- 965.445 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 Great Falls to Petersburg?
The estimated flight time from Great Falls International Airport to Petersburg James A. Johnson Airport is 2 hours and 36 minutes.
What is the time difference between Great Falls and Petersburg?
Flight carbon footprint between Great Falls International Airport (GTF) and Petersburg James A. Johnson Airport (PSG)
On average, flying from Great Falls to Petersburg generates about 157 kg of CO2 per passenger, and 157 kilograms equals 347 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Great Falls to Petersburg
See the map of the shortest flight path between Great Falls International Airport (GTF) and Petersburg James A. Johnson Airport (PSG).
Airport information
| Origin | Great Falls International Airport |
|---|---|
| City: | Great Falls, MT |
| Country: | United States  |
| IATA Code: | GTF |
| ICAO Code: | KGTF |
| Coordinates: | 47°28′55″N, 111°22′15″W |
| Destination | 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 |