How far is St. Theresa Point from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and St. Theresa Point (St. Theresa Point Airport) is 846 miles / 1361 kilometers / 735 nautical miles.
Great Falls International Airport – St. Theresa Point Airport
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Distance from Great Falls to St. Theresa Point
There are several ways to calculate the distance from Great Falls to St. Theresa Point. Here are two standard methods:
Vincenty's formula (applied above)- 845.595 miles
- 1360.853 kilometers
- 734.802 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- 843.579 miles
- 1357.608 kilometers
- 733.050 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 St. Theresa Point?
The estimated flight time from Great Falls International Airport to St. Theresa Point Airport is 2 hours and 6 minutes.
What is the time difference between Great Falls and St. Theresa Point?
Flight carbon footprint between Great Falls International Airport (GTF) and St. Theresa Point Airport (YST)
On average, flying from Great Falls to St. Theresa Point generates about 139 kg of CO2 per passenger, and 139 kilograms equals 306 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Great Falls to St. Theresa Point
See the map of the shortest flight path between Great Falls International Airport (GTF) and St. Theresa Point Airport (YST).
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 | St. Theresa Point Airport |
|---|---|
| City: | St. Theresa Point |
| Country: | Canada  |
| IATA Code: | YST |
| ICAO Code: | CYST |
| Coordinates: | 53°50′44″N, 94°51′6″W |