How far is Great Falls, MT, from Harrison, AR?
The distance between Harrison (Boone County Airport) and Great Falls (Great Falls International Airport) is 1212 miles / 1951 kilometers / 1053 nautical miles.
The driving distance from Harrison (HRO) to Great Falls (GTF) is 1481 miles / 2383 kilometers, and travel time by car is about 28 hours 10 minutes.
Boone County Airport – Great Falls International Airport
Search flights
Distance from Harrison to Great Falls
There are several ways to calculate the distance from Harrison to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 1212.310 miles
- 1951.024 kilometers
- 1053.469 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- 1210.998 miles
- 1948.913 kilometers
- 1052.329 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 Harrison to Great Falls?
The estimated flight time from Boone County Airport to Great Falls International Airport is 2 hours and 47 minutes.
What is the time difference between Harrison and Great Falls?
Flight carbon footprint between Boone County Airport (HRO) and Great Falls International Airport (GTF)
On average, flying from Harrison to Great Falls generates about 162 kg of CO2 per passenger, and 162 kilograms equals 357 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Harrison to Great Falls
See the map of the shortest flight path between Boone County Airport (HRO) and Great Falls International Airport (GTF).
Airport information
| Origin | Boone County Airport |
|---|---|
| City: | Harrison, AR |
| Country: | United States  |
| IATA Code: | HRO |
| ICAO Code: | KHRO |
| Coordinates: | 36°15′41″N, 93°9′16″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 |