Distance from O'Fallon to Peoria
How far is it from O'Fallon to Peoria? About 1,251 mi in a straight line and 1,476 mi by road. Driving time, flight time, midpoint and route details.
O'Fallon and Peoria are about 1,251 mi (2,013 km) apart in a straight line. By road that works out to roughly 1,476 mi (2,375 km), a drive of about 25 hr. A nonstop flight covers the great-circle distance in approximately 2 hr 48 min.
| Straight-line distance | 1,251 mi / 2,013 km |
| Road distance (est.) | 1,476 mi / 2,375 km |
| Driving time (est.) | 25 hr |
| Nonstop flight (est.) | 2 hr 48 min |
| Driving fuel (est., 1-way) | $184 |
| Typical flight fare | $200–$600 |
| Geographic midpoint | 36.681, -101.833 |
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
O'Fallon to Peoria is about 1,251 mi (2,013 km) in a straight line, and roughly 1,476 mi (2,375 km) by road.