There are
2,088 mi
from Hayward, CA to Sycamore, IL
That's the driving distance. It would take 1 day 11 hours to go from Hayward, California to Sycamore, Illinois.
The flight distance (direct flight from Hayward, CA to Sycamore, IL) is 1,785.27 mi.
2,088 mi = 3.22 kms