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How far is Mary's Harbour from Great Falls, MT?

The distance between Great Falls (Great Falls International Airport) and Mary's Harbour (Mary's Harbour Airport) is 2440 miles / 3926 kilometers / 2120 nautical miles.

The driving distance from Great Falls (GTF) to Mary's Harbour (YMH) is 3506 miles / 5643 kilometers, and travel time by car is about 74 hours 0 minutes.

Great Falls International Airport – Mary's Harbour Airport

Distance arrow
2440
Miles
Distance arrow
3926
Kilometers
Distance arrow
2120
Nautical miles
Flight time duration
5 h 7 min
Time Difference
3 h 30 min
CO2 emission
268 kg

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Distance from Great Falls to Mary's Harbour

There are several ways to calculate the distance from Great Falls to Mary's Harbour. Here are two standard methods:

Vincenty's formula (applied above)
  • 2439.518 miles
  • 3926.024 kilometers
  • 2119.883 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
  • 2432.155 miles
  • 3914.174 kilometers
  • 2113.485 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 Mary's Harbour?

The estimated flight time from Great Falls International Airport to Mary's Harbour Airport is 5 hours and 7 minutes.

Flight carbon footprint between Great Falls International Airport (GTF) and Mary's Harbour Airport (YMH)

On average, flying from Great Falls to Mary's Harbour generates about 268 kg of CO2 per passenger, and 268 kilograms equals 591 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 Mary's Harbour

See the map of the shortest flight path between Great Falls International Airport (GTF) and Mary's Harbour Airport (YMH).

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 Mary's Harbour Airport
City: Mary's Harbour
Country: Canada Flag of Canada
IATA Code: YMH
ICAO Code: CYMH
Coordinates: 52°18′10″N, 55°50′49″W