There are
2,808 mi
from Kissimmee, FL to Walnut Creek, CA
That's the driving distance. It would take 2 days 2 hours to go from Kissimmee, Florida to Walnut Creek, California.
The flight distance (direct flight from Kissimmee, FL to Walnut Creek, CA) is 2,424.47 mi.
2,808 mi = 4,518.66 kms