There are
2,114 mi
from Walnut Creek, CA to Palatine, IL
That's the driving distance. It would take 1 day 12 hours to go from Walnut Creek, California to Palatine, Illinois.
The flight distance (direct flight from Walnut Creek, CA to Palatine, IL) is 1,812 mi.
2,114 mi = 3,402.72 kms