Sarnia to St. Paul: Road Trip Guide & Distance

How far is Sarnia from St. Paul?

The distance from Sarnia to St. Paul is 548.2 miles (882.2 km) as the crow flies. St. Paul is located WNW of Sarnia. By car, the driving distance is approximately 657.8 miles, taking about 13h 14min. A direct flight would take roughly 1h 36min. Sarnia is in Ontario, Canada, while St. Paul is in Minnesota, 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 St. Paul. 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.