Air Miles Calculator logo

How far is Great Falls, MT, from Montreal?

The distance between Montreal (Montreal Saint-Hubert Longueuil Airport) and Great Falls (Great Falls International Airport) is 1797 miles / 2893 kilometers / 1562 nautical miles.

The driving distance from Montreal (YHU) to Great Falls (GTF) is 2135 miles / 3436 kilometers, and travel time by car is about 41 hours 2 minutes.

Montreal Saint-Hubert Longueuil Airport – Great Falls International Airport

Distance arrow
1797
Miles
Distance arrow
2893
Kilometers
Distance arrow
1562
Nautical miles

Search flights

Distance from Montreal to Great Falls

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

Vincenty's formula (applied above)
  • 1797.358 miles
  • 2892.567 kilometers
  • 1561.861 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
  • 1792.219 miles
  • 2884.296 kilometers
  • 1557.395 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 Montreal to Great Falls?

The estimated flight time from Montreal Saint-Hubert Longueuil Airport to Great Falls International Airport is 3 hours and 54 minutes.

Flight carbon footprint between Montreal Saint-Hubert Longueuil Airport (YHU) and Great Falls International Airport (GTF)

On average, flying from Montreal to Great Falls generates about 200 kg of CO2 per passenger, and 200 kilograms equals 441 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Montreal to Great Falls

See the map of the shortest flight path between Montreal Saint-Hubert Longueuil Airport (YHU) and Great Falls International Airport (GTF).

Airport information

Origin Montreal Saint-Hubert Longueuil Airport
City: Montreal
Country: Canada Flag of Canada
IATA Code: YHU
ICAO Code: CYHU
Coordinates: 45°31′3″N, 73°25′0″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