Dayton to Portland, Maine: Road Trip Guide & Distance

How far is Dayton from Portland, Maine?

The distance from Dayton to Portland, Maine is 766.5 miles (1233.5 km) as the crow flies. Portland, Maine is located ENE of Dayton. By car, the driving distance is approximately 919.8 miles, taking about 18h 30min. A direct flight would take roughly 2h 3min. Both are located in United States — Dayton in Ohio and Portland, Maine in Maine.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility. For a trip of this distance, flying is significantly faster. However, driving offers the flexibility to explore stops along the way.

Coordinates come from public place data for Dayton and Portland, Maine. 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.