There are
2,122 mi
from Walnut Creek, CA to Antioch, IL
That's the driving distance. It would take 1 day 12 hours to go from Walnut Creek, California to Antioch, Illinois.
The flight distance (direct flight from Walnut Creek, CA to Antioch, IL) is 1,808.04 mi.
2,122 mi = 3,414.78 kms