How far is Great Falls, MT, from Harrisburg, PA?
The distance between Harrisburg (Harrisburg International Airport) and Great Falls (Great Falls International Airport) is 1785 miles / 2872 kilometers / 1551 nautical miles.
The driving distance from Harrisburg (MDT) to Great Falls (GTF) is 2051 miles / 3301 kilometers, and travel time by car is about 37 hours 40 minutes.
Harrisburg International Airport – Great Falls International Airport
Search flights
Distance from Harrisburg to Great Falls
There are several ways to calculate the distance from Harrisburg to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 1784.614 miles
- 2872.058 kilometers
- 1550.787 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- 1780.260 miles
- 2865.050 kilometers
- 1547.003 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 Harrisburg to Great Falls?
The estimated flight time from Harrisburg International Airport to Great Falls International Airport is 3 hours and 52 minutes.
What is the time difference between Harrisburg and Great Falls?
Flight carbon footprint between Harrisburg International Airport (MDT) and Great Falls International Airport (GTF)
On average, flying from Harrisburg to Great Falls generates about 199 kg of CO2 per passenger, and 199 kilograms equals 438 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Harrisburg to Great Falls
See the map of the shortest flight path between Harrisburg International Airport (MDT) and Great Falls International Airport (GTF).
Airport information
| Origin | Harrisburg International Airport |
|---|---|
| City: | Harrisburg, PA |
| Country: | United States  |
| IATA Code: | MDT |
| ICAO Code: | KMDT |
| Coordinates: | 40°11′36″N, 76°45′48″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 |