There are
1,746 mi
from Walnut Creek, CA to Muskogee, OK
That's the driving distance. It would take 1 day 6 hours to go from Walnut Creek, California to Muskogee, Oklahoma.
The flight distance (direct flight from Walnut Creek, CA to Muskogee, OK) is 1,478.84 mi.
1,746 mi = 2,809.36 kms