Miles between Ontario, CA and Deerfield, IL

There are
1,990 mi
from Ontario, CA to Deerfield, IL

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

The flight distance (direct flight from Ontario, CA to Deerfield, IL) is 1,704.02 mi.

1,990 mi = 1.61 kms