There are
2,784 mi
from Walnut Creek, CA to Nanticoke, PA
That's the driving distance. It would take 2 days to go from Walnut Creek, California to Nanticoke, Pennsylvania.
The flight distance (direct flight from Walnut Creek, CA to Nanticoke, PA) is 2,435.56 mi.
2,784 mi = 4,480.00 kms