There are
1,805 mi
from Walnut Creek, CA to Leawood, KS
That's the driving distance. It would take 1 day 6 hours to go from Walnut Creek, California to Leawood, Kansas.
The flight distance (direct flight from Walnut Creek, CA to Leawood, KS) is 1,481.70 mi.
1,805 mi = 2,904.50 kms