There are
2,150 mi
from Hayward, CA to Deerfield, IL
That's the driving distance. It would take 1 day 13 hours to go from Hayward, California to Deerfield, Illinois.
The flight distance (direct flight from Hayward, CA to Deerfield, IL) is 1,828.08 mi.
2,150 mi = 3.22 kms