There are
2,979 mi
from Union City, CA to Patchogue, NY
That's the driving distance. It would take 2 days 4 hours to go from Union City, California to Patchogue, New York.
The flight distance (direct flight from Union City, CA to Patchogue, NY) is 2,601.01 mi.
2,979 mi = 3.22 kms