Portsmouth, Ohio to Saint Charles, Missouri: Road Trip Guide & Distance

How far is Portsmouth, Ohio from Saint Charles, Missouri?

The distance from Portsmouth, Ohio to Saint Charles, Missouri is 403.1 miles (648.7 km) as the crow flies. Saint Charles, Missouri is located W of Portsmouth, Ohio. By car, the driving distance is approximately 483.7 miles, taking about 9h 44min. A direct flight would take roughly 1h 19min. Both are located in United States — Portsmouth, Ohio in Ohio and Saint Charles, 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 Portsmouth, Ohio and Saint Charles, 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.