Driving Time from Rockford to St. Louis
Driving from Rockford to St. Louis is about 315 mi and takes roughly 5 hr 38 min. See the fuel-cost estimate, distance and route tips.
Rockford and St. Louis are about 258 mi (416 km) apart in a straight line. By road that works out to roughly 315 mi (507 km), a drive of about 5 hr 38 min. A nonstop flight covers the great-circle distance in approximately 59 min.
| Straight-line distance | 258 mi / 416 km |
| Road distance (est.) | 315 mi / 507 km |
| Driving time (est.) | 5 hr 38 min |
| Nonstop flight (est.) | 59 min |
| Driving fuel (est., 1-way) | $39 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 40.451, -89.661 |
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
Rockford to St. Louis is about 258 mi (416 km) in a straight line, and roughly 315 mi (507 km) by road.