Miles between San Marcos, CA and Union, NJ

There are
2,809 mi
from San Marcos, CA to Union, NJ

That's the driving distance. It would take 2 days 2 hours to go from San Marcos, California to Union, New Jersey.

The flight distance (direct flight from San Marcos, CA to Union, NJ) is 2,401.91 mi.

2,809 mi = 3.22 kms