Cincinnati to Saint Peters, Missouri: Road Trip Guide & Distance

How far is Cincinnati from Saint Peters, Missouri?

The distance from Cincinnati to Saint Peters, Missouri is 329.1 miles (529.7 km) as the crow flies. Saint Peters, Missouri is located W of Cincinnati. By car, the driving distance is approximately 394.9 miles, taking about 7h 57min. A direct flight would take roughly 1h 10min. Both are located in United States — Cincinnati in Ohio and Saint Peters, Missouri in Missouri.

This is a solid day of driving. Be sure to take breaks every 2-3 hours to avoid driver fatigue, and plan your meals ahead of time. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare.

Coordinates come from public place data for Cincinnati 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.