There are
1,660 mi
from Walnut Creek, CA to Ardmore, OK
That's the driving distance. It would take 1 day 5 hours to go from Walnut Creek, California to Ardmore, Oklahoma.
The flight distance (direct flight from Walnut Creek, CA to Ardmore, OK) is 1,411.60 mi.
1,660 mi = 2,671.62 kms