Miles between Ontario, CA and River Forest, IL

There are
1,973 mi
from Ontario, CA to River Forest, IL

That's the driving distance. It would take 1 day 10 hours to go from Ontario, California to River Forest, Illinois.

The flight distance (direct flight from Ontario, CA to River Forest, IL) is 1,702.62 mi.

1,973 mi = 1.61 kms