Calculate route from Williamson (airport) (Illinois, United States) to O'Fallon (Missouri, United States).
The flight distance (as the crow flies) between Williamson (airport) and O'Fallon is 204.2 km.
Roadmap (route) to go from Williamson Airport to O'Fallon detailed above, you can also see the course layout on the map.
While doing trip Williamson (airport) - O'Fallon by car, the calculated route ends at a distance , or more straight.
Country flag | ![]() |
Location | O'Fallon |
State | Missouri |
County | Saint Charles County |
Country | United States |
Country code / ISO 2 | US |
Latitude | 38.8106100 |
Longitude | -90.6998500 |
Altitude | 165 meters |
Time zone | America/Chicago |