Miles between Dayton, OH and Romeoville, IL

There are
305 mi
from Dayton, OH to Romeoville, IL

That's the driving distance. It would take 5 hours 57 mins to go from Dayton, Ohio to Romeoville, Illinois.

The flight distance (direct flight from Dayton, OH to Romeoville, IL) is 242.27 mi.

305 mi = 491.57 kms