There are
2,948 mi
from Walnut Creek, CA to Patchogue, NY
That's the driving distance. It would take 2 days 4 hours to go from Walnut Creek, California to Patchogue, New York.
The flight distance (direct flight from Walnut Creek, CA to Patchogue, NY) is 2,594.43 mi.
2,948 mi = 4,744.77 kms