How far is Great Falls, MT, from Watertown, SD?
The distance between Watertown (Watertown Regional Airport) and Great Falls (Great Falls International Airport) is 703 miles / 1132 kilometers / 611 nautical miles.
The driving distance from Watertown (ATY) to Great Falls (GTF) is 886 miles / 1426 kilometers, and travel time by car is about 15 hours 54 minutes.
Watertown Regional Airport – Great Falls International Airport
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Distance from Watertown to Great Falls
There are several ways to calculate the distance from Watertown to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 703.407 miles
- 1132.024 kilometers
- 611.244 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- 701.539 miles
- 1129.018 kilometers
- 609.621 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 Watertown to Great Falls?
The estimated flight time from Watertown Regional Airport to Great Falls International Airport is 1 hour and 49 minutes.
What is the time difference between Watertown and Great Falls?
Flight carbon footprint between Watertown Regional Airport (ATY) and Great Falls International Airport (GTF)
On average, flying from Watertown to Great Falls generates about 125 kg of CO2 per passenger, and 125 kilograms equals 276 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Watertown to Great Falls
See the map of the shortest flight path between Watertown Regional Airport (ATY) and Great Falls International Airport (GTF).
Airport information
| Origin | Watertown Regional Airport |
|---|---|
| City: | Watertown, SD |
| Country: | United States  |
| IATA Code: | ATY |
| ICAO Code: | KATY |
| Coordinates: | 44°54′50″N, 97°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 |