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How far is Thunder Bay from Seattle, WA?

The distance between Seattle (Seattle Boeing Field) and Thunder Bay (Thunder Bay International Airport) is 1520 miles / 2446 kilometers / 1321 nautical miles.

The driving distance from Seattle (BFI) to Thunder Bay (YQT) is 1872 miles / 3012 kilometers, and travel time by car is about 33 hours 57 minutes.

Seattle Boeing Field – Thunder Bay International Airport

Distance arrow
1520
Miles
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2446
Kilometers
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1321
Nautical miles

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Distance from Seattle to Thunder Bay

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

Vincenty's formula (applied above)
  • 1519.896 miles
  • 2446.035 kilometers
  • 1320.753 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
  • 1515.400 miles
  • 2438.799 kilometers
  • 1316.846 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 Seattle to Thunder Bay?

The estimated flight time from Seattle Boeing Field to Thunder Bay International Airport is 3 hours and 22 minutes.

Flight carbon footprint between Seattle Boeing Field (BFI) and Thunder Bay International Airport (YQT)

On average, flying from Seattle to Thunder Bay generates about 181 kg of CO2 per passenger, and 181 kilograms equals 398 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

See the map of the shortest flight path between Seattle Boeing Field (BFI) and Thunder Bay International Airport (YQT).

Airport information

Origin Seattle Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″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