There are
2,112 mi
from Hayward, CA to Warrenville, IL
That's the driving distance. It would take 1 day 12 hours to go from Hayward, California to Warrenville, Illinois.
The flight distance (direct flight from Hayward, CA to Warrenville, IL) is 1,812.06 mi.
2,112 mi = 3.22 kms