Distance between Decatur and O'Fallon
Distance from Decatur, IL to O'Fallon, MO is 117 miles / 189 kilometers.
Map showing the distance from Decatur to O'Fallon
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Air distance: | miles km |
Decatur, IL
| City: | Decatur, IL |
| Country: | United States |
O'Fallon, MO
| City: | O'Fallon, MO |
| Country: | United States |
Time difference between Decatur and O'Fallon
There is no time difference between Decatur and O'Fallon. Current local time in Decatur and O'Fallon is 12:07 CST (2025-02-18)