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How far is Great Falls, MT, from Ottawa?

The distance between Ottawa (Ottawa Macdonald–Cartier International Airport) and Great Falls (Great Falls International Airport) is 1697 miles / 2732 kilometers / 1475 nautical miles.

The driving distance from Ottawa (YOW) to Great Falls (GTF) is 1905 miles / 3065 kilometers, and travel time by car is about 38 hours 37 minutes.

Ottawa Macdonald–Cartier International Airport – Great Falls International Airport

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1697
Miles
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2732
Kilometers
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1475
Nautical miles

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Distance from Ottawa to Great Falls

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

Vincenty's formula (applied above)
  • 1697.378 miles
  • 2731.665 kilometers
  • 1474.981 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
  • 1692.545 miles
  • 2723.888 kilometers
  • 1470.782 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 Ottawa to Great Falls?

The estimated flight time from Ottawa Macdonald–Cartier International Airport to Great Falls International Airport is 3 hours and 42 minutes.

Flight carbon footprint between Ottawa Macdonald–Cartier International Airport (YOW) and Great Falls International Airport (GTF)

On average, flying from Ottawa to Great Falls generates about 192 kg of CO2 per passenger, and 192 kilograms equals 424 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

See the map of the shortest flight path between Ottawa Macdonald–Cartier International Airport (YOW) and Great Falls International Airport (GTF).

Airport information

Origin Ottawa Macdonald–Cartier International Airport
City: Ottawa
Country: Canada Flag of Canada
IATA Code: YOW
ICAO Code: CYOW
Coordinates: 45°19′20″N, 75°40′9″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