There are
2,023 mi
from Walnut Creek, CA to Chesterfield, MO
That's the driving distance. It would take 1 day 10 hours to go from Walnut Creek, California to Chesterfield, Missouri.
The flight distance (direct flight from Walnut Creek, CA to Chesterfield, MO) is 1,700.10 mi.
2,023 mi = 3,255.37 kms