There are
2,880 mi
from Walnut Creek, CA to Plainfield, NJ
That's the driving distance. It would take 2 days 2 hours to go from Walnut Creek, California to Plainfield, New Jersey.
The flight distance (direct flight from Walnut Creek, CA to Plainfield, NJ) is 2,524.93 mi.
2,880 mi = 4,634.55 kms