There are
725 mi
from Albuquerque, NM to San Marcos, TX
That's the driving distance. It would take 13 hours 12 mins to go from Albuquerque, New Mexico to San Marcos, Texas.
The flight distance (direct flight from Albuquerque, NM to San Marcos, TX) is 621.52 mi.
725 mi = 1,166.53 kms