Distance from Columbia to O'Fallon
How far is it from Columbia to O'Fallon? About 631 mi in a straight line and 745 mi by road. Driving time, flight time, midpoint and route details.
Columbia and O'Fallon are about 631 mi (1,016 km) apart in a straight line. By road that works out to roughly 745 mi (1,199 km), a drive of about 12 hr 37 min. A nonstop flight covers the great-circle distance in approximately 1 hr 40 min.
| Straight-line distance | 631 mi / 1,016 km |
| Road distance (est.) | 745 mi / 1,199 km |
| Driving time (est.) | 12 hr 37 min |
| Nonstop flight (est.) | 1 hr 40 min |
| Driving fuel (est., 1-way) | $93 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 36.503, -85.717 |
How these estimates work
Straight-line distance uses the haversine formula on each city's coordinates. Road distance applies a circuity factor (~1.2–1.4×) and driving time a blended average speed. Flight time uses typical jet cruise speed plus ~30 minutes for taxi, climb and descent. Treat all figures as planning estimates.
Frequently asked questions
Columbia to O'Fallon is about 631 mi (1,016 km) in a straight line, and roughly 745 mi (1,199 km) by road.