There are
1,156 mi
from Cheyenne, WY to Walnut Creek, CA
That's the driving distance. It would take 19 hours 35 mins to go from Cheyenne, Wyoming to Walnut Creek, California.
The flight distance (direct flight from Cheyenne, WY to Walnut Creek, CA) is 944.13 mi.
1,156 mi = 1,861.06 kms