Calculate route from O'Fallon (Missouri, United States) to Quincy (Illinois, United States).

The flight distance (as the crow flies) between O'Fallon and Quincy is 139.1 km.

Roadmap (route) to go from O'Fallon to Quincy detailed above, you can also see the course layout on the map.

While doing trip O'Fallon - Quincy by car, the calculated route ends at a distance , or more straight.