Mount Vernon, Ohio to St. Charles, Maryland: Road Trip Guide & Distance

How far is Mount Vernon, Ohio from St. Charles, Maryland?

The distance from Mount Vernon, Ohio to St. Charles, Maryland is 321.1 miles (516.7 km) as the crow flies. St. Charles, Maryland is located ESE of Mount Vernon, Ohio. By car, the driving distance is approximately 385.3 miles, taking about 7h 45min. A direct flight would take roughly 1h 9min. Both are located in United States — Mount Vernon, Ohio in Ohio and St. Charles, Maryland in Maryland.

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. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility.

Coordinates come from public place data for Mount Vernon, Ohio and St. Charles, Maryland. 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.