There are
2,420 mi
from Walnut Creek, CA to Opelika, AL
That's the driving distance. It would take 1 day 18 hours to go from Walnut Creek, California to Opelika, Alabama.
The flight distance (direct flight from Walnut Creek, CA to Opelika, AL) is 2,087.33 mi.
2,420 mi = 3,894.62 kms