Dayton to Romeoville: Road Trip Guide & Distance

How far is Dayton from Romeoville?

The distance from Dayton to Romeoville is 242.3 miles (389.9 km) as the crow flies. Romeoville is located NW of Dayton. By car, the driving distance is approximately 302.9 miles, taking about 6h 6min. A direct flight would take roughly 59min. Both are located in United States — Dayton in Ohio and Romeoville in Illinois.

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. 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 Dayton and Romeoville. 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.