There are
2,107 mi
from Walnut Creek, CA to Franklin Park, IL
That's the driving distance. It would take 1 day 12 hours to go from Walnut Creek, California to Franklin Park, Illinois.
The flight distance (direct flight from Walnut Creek, CA to Franklin Park, IL) is 1,820.45 mi.
2,107 mi = 3,391.62 kms