There are
2,161 mi
from Ukiah, CA to Antioch, IL
That's the driving distance. It would take 1 day 14 hours to go from Ukiah, California to Antioch, Illinois.
The flight distance (direct flight from Ukiah, CA to Antioch, IL) is 1,837.20 mi.
2,161 mi = 3,476.98 kms