Miles between Union City, CA and San Marcos, TX

There are
1,735 mi
from Union City, CA to San Marcos, TX

That's the driving distance. It would take 1 day 6 hours to go from Union City, California to San Marcos, Texas.

The flight distance (direct flight from Union City, CA to San Marcos, TX) is 1,478.60 mi.

1,735 mi = 1.61 kms