Sarnia to Waldorf: Road Trip Guide & Distance

How far is Sarnia from Waldorf?

The distance from Sarnia to Waldorf is 414.8 miles (667.5 km) as the crow flies. Waldorf is located SE of Sarnia. By car, the driving distance is approximately 497.7 miles, taking about 10h 1min. A direct flight would take roughly 1h 20min. Sarnia is in Ontario, Canada, while Waldorf is in Maryland, 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. 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 Sarnia and Waldorf. 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.