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

How far is Indianapolis from O'Fallon, Illinois?

The distance from Indianapolis to O'Fallon, Illinois is 216.8 miles (348.9 km) as the crow flies. O'Fallon, Illinois is located WSW of Indianapolis. By car, the driving distance is approximately 234.6 miles, taking about 4h 28min. A direct flight would take roughly 56min. Both are located in United States — Indianapolis in Indiana and O'Fallon, Illinois in Illinois.

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. Given the short distance, driving or taking a train is often faster and more convenient than dealing with airport security and flight boarding times.

Coordinates come from public place data for Indianapolis 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.