Calculate route from Douglas (airport) (Illinois, United States) to O'Fallon (Missouri, United States).
The flight distance (as the crow flies) between Douglas (airport) and O'Fallon is 199.4 km.
Roadmap (route) to go from Douglas Airport to O'Fallon detailed above, you can also see the course layout on the map.
While doing trip Douglas (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 |