There are
2,011 mi
from Walnut Creek, CA to Washington, MO
That's the driving distance. It would take 1 day 10 hours to go from Walnut Creek, California to Washington, Missouri.
The flight distance (direct flight from Walnut Creek, CA to Washington, MO) is 1,677.89 mi.
2,011 mi = 3,236.85 kms