There are
2,865 mi
from Union, NJ to Lathrop, CA
That's the driving distance. It would take 2 days 2 hours to go from Union, New Jersey to Lathrop, California.
The flight distance (direct flight from Union, NJ to Lathrop, CA) is 2,492.92 mi.
2,865 mi = 4,611.08 kms