Manassas to Niagara-on-the-Lake: Road Trip Guide & Distance

How far is Manassas from Niagara-on-the-Lake?

The distance from Manassas to Niagara-on-the-Lake is 322.1 miles (518.4 km) as the crow flies. Niagara-on-the-Lake is located NNW of Manassas. By car, the driving distance is approximately 386.6 miles, taking about 7h 47min. A direct flight would take roughly 1h 9min. Manassas is in Virginia, United States, while Niagara-on-the-Lake 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. 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 Manassas and Niagara-on-the-Lake. 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.