Sarnia to Superior: Road Trip Guide & Distance

How far is Sarnia from Superior?

The distance from Sarnia to Superior is 540.4 miles (869.7 km) as the crow flies. Superior is located WNW of Sarnia. By car, the driving distance is approximately 648.5 miles, taking about 13h 3min. A direct flight would take roughly 1h 35min. Sarnia is in Ontario, Canada, while Superior is in Wisconsin, United States.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. 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 Sarnia and Superior. 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.