There are
1,729 mi
from Reno, NV to San Marcos, TX
That's the driving distance. It would take 1 day 7 hours to go from Reno, Nevada to San Marcos, Texas.
The flight distance (direct flight from Reno, NV to San Marcos, TX) is 1,404.51 mi.
1,729 mi = 1.61 kms