Chicago to O'Fallon, Illinois: Road Trip Guide & Distance

How far is Chicago from O'Fallon, Illinois?

The distance from Chicago to O'Fallon, Illinois is 256.9 miles (413.5 km) as the crow flies. O'Fallon, Illinois is located SSW of Chicago. By car, the driving distance is approximately 292.7 miles, taking about 5h 34min. A direct flight would take roughly 1h 1min. Both are located in 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. 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.

Coordinates come from public place data for Chicago and O'Fallon, Illinois. The driving distance uses an OSRM road-route result when route data is available. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.