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How far is Thunder Bay from Great Falls, MT?

The distance between Great Falls (Great Falls International Airport) and Thunder Bay (Thunder Bay International Airport) is 1022 miles / 1645 kilometers / 888 nautical miles.

The driving distance from Great Falls (GTF) to Thunder Bay (YQT) is 1188 miles / 1912 kilometers, and travel time by car is about 22 hours 41 minutes.

Great Falls International Airport – Thunder Bay International Airport

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1022
Miles
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1645
Kilometers
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888
Nautical miles

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Distance from Great Falls to Thunder Bay

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

Vincenty's formula (applied above)
  • 1022.070 miles
  • 1644.863 kilometers
  • 888.155 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
  • 1019.055 miles
  • 1640.010 kilometers
  • 885.534 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 Thunder Bay?

The estimated flight time from Great Falls International Airport to Thunder Bay International Airport is 2 hours and 26 minutes.

Flight carbon footprint between Great Falls International Airport (GTF) and Thunder Bay International Airport (YQT)

On average, flying from Great Falls to Thunder Bay generates about 152 kg of CO2 per passenger, and 152 kilograms equals 336 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 Thunder Bay

See the map of the shortest flight path between Great Falls International Airport (GTF) and Thunder Bay International Airport (YQT).

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 Thunder Bay International Airport
City: Thunder Bay
Country: Canada Flag of Canada
IATA Code: YQT
ICAO Code: CYQT
Coordinates: 48°22′18″N, 89°19′26″W