Niagara Falls, Ontario, Canada to St. Louis: Road Trip Guide & Distance

How far is Niagara Falls, Ontario, Canada from St. Louis?

The distance from Niagara Falls, Ontario, Canada to St. Louis is 656.8 miles (1057 km) as the crow flies. St. Louis is located WSW of Niagara Falls, Ontario, Canada. By car, the driving distance is approximately 788.1 miles, taking about 15h 51min. A direct flight would take roughly 1h 49min. Niagara Falls, Ontario, Canada is in Ontario, Canada, while St. Louis is in Missouri, 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 Niagara Falls, Ontario, Canada and St. Louis. 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.