Green Bay to Thunder Bay: Road Trip Guide & Distance

How far is Green Bay from Thunder Bay?

The distance from Green Bay to Thunder Bay is 273.2 miles (439.6 km) as the crow flies. Thunder Bay is located NNW of Green Bay. By car, the driving distance is approximately 341.4 miles, taking about 6h 52min. A direct flight would take roughly 1h 3min. Green Bay is in Wisconsin, United States, while Thunder Bay is in Ontario, Canada.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare. Keep in mind this route crosses international borders. Don't forget your passport, and check current border crossing times and vehicle insurance requirements.

Coordinates come from public place data for Green Bay and Thunder Bay. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.