O'Fallon, Illinois to Saint Charles, Missouri: Road Trip Guide & Distance

How far is O'Fallon, Illinois from Saint Charles, Missouri?

The distance from O'Fallon, Illinois to Saint Charles, Missouri is 33.5 miles (53.9 km) as the crow flies. Saint Charles, Missouri is located WNW of O'Fallon, Illinois. By car, the driving distance is approximately 43.6 miles, taking about 53min. A direct flight would take roughly 34min. Both are located in United States — O'Fallon, Illinois in Illinois and Saint Charles, Missouri in Missouri.

This is a very short trip, perfect for a quick morning drive or an easy commute. 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 O'Fallon, Illinois and Saint Charles, Missouri. 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.