Air Miles Calculator logo

How far is Great Falls, MT, from St. Lewis?

The distance between St. Lewis (St. Lewis (Fox Harbour) Airport) and Great Falls (Great Falls International Airport) is 2445 miles / 3935 kilometers / 2125 nautical miles.

The driving distance from St. Lewis (YFX) to Great Falls (GTF) is 3500 miles / 5633 kilometers, and travel time by car is about 74 hours 3 minutes.

St. Lewis (Fox Harbour) Airport – Great Falls International Airport

Distance arrow
2445
Miles
Distance arrow
3935
Kilometers
Distance arrow
2125
Nautical miles
Flight time duration
5 h 7 min
Time Difference
3 h 30 min
CO2 emission
269 kg

Search flights

Distance from St. Lewis to Great Falls

There are several ways to calculate the distance from St. Lewis to Great Falls. Here are two standard methods:

Vincenty's formula (applied above)
  • 2445.366 miles
  • 3935.436 kilometers
  • 2124.965 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
  • 2437.984 miles
  • 3923.555 kilometers
  • 2118.550 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 St. Lewis to Great Falls?

The estimated flight time from St. Lewis (Fox Harbour) Airport to Great Falls International Airport is 5 hours and 7 minutes.

Flight carbon footprint between St. Lewis (Fox Harbour) Airport (YFX) and Great Falls International Airport (GTF)

On average, flying from St. Lewis to Great Falls generates about 269 kg of CO2 per passenger, and 269 kilograms equals 593 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from St. Lewis to Great Falls

See the map of the shortest flight path between St. Lewis (Fox Harbour) Airport (YFX) and Great Falls International Airport (GTF).

Airport information

Origin St. Lewis (Fox Harbour) Airport
City: St. Lewis
Country: Canada Flag of Canada
IATA Code: YFX
ICAO Code: CCK4
Coordinates: 52°22′22″N, 55°40′26″W
Destination Great Falls International Airport
City: Great Falls, MT
Country: United States Flag of United States
IATA Code: GTF
ICAO Code: KGTF
Coordinates: 47°28′55″N, 111°22′15″W