There are
2,052 mi
from Antioch, CA to Sycamore, IL
That's the driving distance. It would take 1 day 11 hours to go from Antioch, California to Sycamore, Illinois.
The flight distance (direct flight from Antioch, CA to Sycamore, IL) is 1,763.28 mi.
2,052 mi = 3.22 kms