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

How far is Bartlesville from O'Fallon, Illinois?

The distance from Bartlesville to O'Fallon, Illinois is 355.5 miles (572.1 km) as the crow flies. O'Fallon, Illinois is located ENE of Bartlesville. By car, the driving distance is approximately 426.6 miles, taking about 8h 35min. A direct flight would take roughly 1h 13min. Both are located in United States — Bartlesville in Oklahoma and O'Fallon, Illinois in Illinois.

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 Bartlesville and O'Fallon, Illinois. 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.