There are
1,980 mi
from Rialto, CA to Deerfield, IL
That's the driving distance. It would take 1 day 10 hours to go from Rialto, California to Deerfield, Illinois.
The flight distance (direct flight from Rialto, CA to Deerfield, IL) is 1,688.43 mi.
1,980 mi = 1.61 kms