How far is Great Falls, MT, from Johnstown, PA?
The distance between Johnstown (Johnstown–Cambria County Airport) and Great Falls (Great Falls International Airport) is 1684 miles / 2710 kilometers / 1463 nautical miles.
The driving distance from Johnstown (JST) to Great Falls (GTF) is 1937 miles / 3117 kilometers, and travel time by car is about 35 hours 30 minutes.
Johnstown–Cambria County Airport – Great Falls International Airport
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Distance from Johnstown to Great Falls
There are several ways to calculate the distance from Johnstown to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 1683.957 miles
- 2710.067 kilometers
- 1463.319 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- 1679.881 miles
- 2703.506 kilometers
- 1459.777 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 Johnstown to Great Falls?
The estimated flight time from Johnstown–Cambria County Airport to Great Falls International Airport is 3 hours and 41 minutes.
What is the time difference between Johnstown and Great Falls?
Flight carbon footprint between Johnstown–Cambria County Airport (JST) and Great Falls International Airport (GTF)
On average, flying from Johnstown to Great Falls generates about 192 kg of CO2 per passenger, and 192 kilograms equals 422 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Johnstown to Great Falls
See the map of the shortest flight path between Johnstown–Cambria County Airport (JST) and Great Falls International Airport (GTF).
Airport information
| Origin | Johnstown–Cambria County Airport |
|---|---|
| City: | Johnstown, PA |
| Country: | United States  |
| IATA Code: | JST |
| ICAO Code: | KJST |
| Coordinates: | 40°18′57″N, 78°50′2″W |
| Destination | 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 |