Miles between Ontario, CA and Rockford, IL

There are
1,936 mi
from Ontario, CA to Rockford, IL

That's the driving distance. It would take 1 day 9 hours to go from Ontario, California to Rockford, Illinois.

The flight distance (direct flight from Ontario, CA to Rockford, IL) is 1,642.26 mi.

1,936 mi = 1.61 kms