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

How far is O'Fallon, Missouri from Waukesha?

The distance from O'Fallon, Missouri to Waukesha is 317.6 miles (511.1 km) as the crow flies. Waukesha is located NNE of O'Fallon, Missouri. By car, the driving distance is approximately 381.1 miles, taking about 7h 40min. A direct flight would take roughly 1h 8min. Both are located in United States — O'Fallon, Missouri in Missouri and Waukesha in Wisconsin.

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.

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