Grimsby, Ontario, Canada to Mackinac Island: Road Trip Guide & Distance

How far is Grimsby, Ontario, Canada from Mackinac Island?

The distance from Grimsby, Ontario, Canada to Mackinac Island is 308.8 miles (497 km) as the crow flies. Mackinac Island is located NW of Grimsby, Ontario, Canada. By car, the driving distance is approximately 386.1 miles, taking about 7h 46min. A direct flight would take roughly 1h 7min. Grimsby, Ontario, Canada is in Ontario, Canada, while Mackinac Island is in Michigan, United States.

This is a solid day of driving. Be sure to take breaks every 2-3 hours to avoid driver fatigue, and plan your meals ahead of time. 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 Grimsby, Ontario, Canada and Mackinac Island. 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.