Flight Time from Kansas City to O'Fallon
The flight from Kansas City to O'Fallon covers about 209 mi and takes roughly 53 min nonstop. Flight duration estimate and fare guide.
Kansas City and O'Fallon are about 209 mi (337 km) apart in a straight line. By road that works out to roughly 255 mi (411 km), a drive of about 4 hr 34 min. A nonstop flight covers the great-circle distance in approximately 53 min.
| Straight-line distance | 209 mi / 337 km |
| Road distance (est.) | 255 mi / 411 km |
| Driving time (est.) | 4 hr 34 min |
| Nonstop flight (est.) | 53 min |
| Driving fuel (est., 1-way) | $32 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 38.971, -92.635 |
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
Kansas City to O'Fallon is about 209 mi (337 km) in a straight line, and roughly 255 mi (411 km) by road.