St. Thomas to Williamsport: Road Trip Guide & Distance

How far is St. Thomas from Williamsport?

The distance from St. Thomas to Williamsport is 239.2 miles (385 km) as the crow flies. Williamsport is located ESE of St. Thomas. By car, the driving distance is approximately 299.1 miles, taking about 6h 1min. A direct flight would take roughly 59min. St. Thomas is in Ontario, Canada, while Williamsport is in Pennsylvania, United States.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. 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 St. Thomas and Williamsport. 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.