There are
1,342 mi
from San Marcos, CA to Saginaw, TX
That's the driving distance. It would take 23 hours 6 mins to go from San Marcos, California to Saginaw, Texas.
The flight distance (direct flight from San Marcos, CA to Saginaw, TX) is 1,145.90 mi.
1,342 mi = 1.61 kms