Louisville to Sarnia: Road Trip Guide & Distance

How far is Louisville from Sarnia?

The distance from Louisville to Sarnia is 370.8 miles (596.8 km) as the crow flies. Sarnia is located NNE of Louisville. By car, the driving distance is approximately 445 miles, taking about 8h 57min. A direct flight would take roughly 1h 15min. Louisville is in Kentucky, United States, while Sarnia is in Ontario, Canada.

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. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility. 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 Louisville and Sarnia. 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.