How far is Saint John from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Saint John (Saint John Airport) is 2147 miles / 3456 kilometers / 1866 nautical miles.
The driving distance from Great Falls (GTF) to Saint John (YSJ) is 2596 miles / 4178 kilometers, and travel time by car is about 51 hours 11 minutes.
Great Falls International Airport – Saint John Airport
Search flights
Distance from Great Falls to Saint John
There are several ways to calculate the distance from Great Falls to Saint John. Here are two standard methods:
Vincenty's formula (applied above)- 2147.303 miles
- 3455.749 kilometers
- 1865.955 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- 2141.172 miles
- 3445.882 kilometers
- 1860.628 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 Saint John?
The estimated flight time from Great Falls International Airport to Saint John Airport is 4 hours and 33 minutes.
What is the time difference between Great Falls and Saint John?
Flight carbon footprint between Great Falls International Airport (GTF) and Saint John Airport (YSJ)
On average, flying from Great Falls to Saint John generates about 234 kg of CO2 per passenger, and 234 kilograms equals 517 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Great Falls to Saint John
See the map of the shortest flight path between Great Falls International Airport (GTF) and Saint John Airport (YSJ).
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 | Saint John Airport |
|---|---|
| City: | Saint John |
| Country: | Canada  |
| IATA Code: | YSJ |
| ICAO Code: | CYSJ |
| Coordinates: | 45°18′57″N, 65°53′25″W |