Miles between Frederick, MD and Romeoville, IL

There are
670 mi
from Frederick, MD to Romeoville, IL

That's the driving distance. It would take 12 hours 30 mins to go from Frederick, Maryland to Romeoville, Illinois.

The flight distance (direct flight from Frederick, MD to Romeoville, IL) is 581.20 mi.

670 mi = 1,078.11 kms