Miles between Rockford, IL and Derby, CT

There are
941 mi
from Rockford, IL to Derby, CT

That's the driving distance. It would take 17 hours 57 mins to go from Rockford, Illinois to Derby, Connecticut.

The flight distance (direct flight from Rockford, IL to Derby, CT) is 825.82 mi.

941 mi = 1,515.11 kms