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

How far is Indianapolis from O'Fallon, Missouri?

The distance from Indianapolis to O'Fallon, Missouri is 251.7 miles (405.1 km) as the crow flies. O'Fallon, Missouri is located WSW of Indianapolis. By car, the driving distance is approximately 267.9 miles, taking about 5h 5min. A direct flight would take roughly 1h 0min. Both are located in United States — Indianapolis in Indiana and O'Fallon, Missouri in Missouri.

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 Indianapolis and O'Fallon, Missouri. 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.