There are
2,890 mi
from Union, NJ to Larkspur, CA
That's the driving distance. It would take 2 days 2 hours to go from Union, New Jersey to Larkspur, California.
The flight distance (direct flight from Union, NJ to Larkspur, CA) is 2,554.89 mi.
2,890 mi = 4,650.35 kms