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How far is Montreal from Great Falls, MT?

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

The driving distance from Great Falls (GTF) to Montreal (YHU) is 2146 miles / 3454 kilometers, and travel time by car is about 41 hours 1 minutes.

Great Falls International Airport – Montreal Saint-Hubert Longueuil Airport

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1797
Miles
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2893
Kilometers
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1562
Nautical miles

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Distance from Great Falls to Montreal

There are several ways to calculate the distance from Great Falls to Montreal. 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 Great Falls to Montreal?

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

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

On average, flying from Great Falls to Montreal 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 Great Falls to Montreal

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

Airport information

Origin 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
Destination 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