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How far is Thunder Bay from Duluth, MN?

The distance between Duluth (Duluth International Airport) and Thunder Bay (Thunder Bay International Airport) is 171 miles / 275 kilometers / 148 nautical miles.

The driving distance from Duluth (DLH) to Thunder Bay (YQT) is 194 miles / 312 kilometers, and travel time by car is about 4 hours 18 minutes.

Duluth International Airport – Thunder Bay International Airport

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171
Miles
Distance arrow
275
Kilometers
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148
Nautical miles

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Distance from Duluth to Thunder Bay

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

Vincenty's formula (applied above)
  • 170.702 miles
  • 274.718 kilometers
  • 148.336 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
  • 170.400 miles
  • 274.232 kilometers
  • 148.073 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 Duluth to Thunder Bay?

The estimated flight time from Duluth International Airport to Thunder Bay International Airport is 49 minutes.

Flight carbon footprint between Duluth International Airport (DLH) and Thunder Bay International Airport (YQT)

On average, flying from Duluth to Thunder Bay generates about 50 kg of CO2 per passenger, and 50 kilograms equals 111 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Duluth to Thunder Bay

See the map of the shortest flight path between Duluth International Airport (DLH) and Thunder Bay International Airport (YQT).

Airport information

Origin Duluth International Airport
City: Duluth, MN
Country: United States Flag of United States
IATA Code: DLH
ICAO Code: KDLH
Coordinates: 46°50′31″N, 92°11′36″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