Rock Island to Saint Peters, Missouri: Road Trip Guide & Distance

How far is Rock Island from Saint Peters, Missouri?

The distance from Rock Island to Saint Peters, Missouri is 187.2 miles (301.3 km) as the crow flies. Saint Peters, Missouri is located S of Rock Island. By car, the driving distance is approximately 234 miles, taking about 4h 42min. A direct flight would take roughly 53min. Both are located in United States — Rock Island in Illinois and Saint Peters, Missouri in Missouri.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. Given the short distance, driving or taking a train is often faster and more convenient than dealing with airport security and flight boarding times.

Coordinates come from public place data for Rock Island and Saint Peters, Missouri. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.