Eau Claire to O'Fallon, Missouri: Road Trip Guide & Distance

How far is Eau Claire from O'Fallon, Missouri?

The distance from Eau Claire to O'Fallon, Missouri is 416.6 miles (670.5 km) as the crow flies. O'Fallon, Missouri is located S of Eau Claire. By car, the driving distance is approximately 500 miles, taking about 10h 3min. A direct flight would take roughly 1h 20min. Both are located in United States — Eau Claire in Wisconsin and O'Fallon, Missouri in Missouri.

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. As you head South, expect warmer temperatures. Make sure your car's AC is working well before embarking on this journey.

Coordinates come from public place data for Eau Claire and O'Fallon, Missouri. 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.