There are
1,755 mi
from Walnut Creek, CA to Derby, KS
That's the driving distance. It would take 1 day 5 hours to go from Walnut Creek, California to Derby, Kansas.
The flight distance (direct flight from Walnut Creek, CA to Derby, KS) is 1,351.31 mi.
1,755 mi = 2,824.60 kms