Miles between Union City, CA and San Marcos, CA

There are
463 mi
from Union City, CA to San Marcos, CA

That's the driving distance. It would take 8 hours 44 mins to go from Union City, California to San Marcos, California.

The flight distance (direct flight from Union City, CA to San Marcos, CA) is 412.26 mi.

463 mi = 745.00 kms