There are
1,857 mi
from Schenectady, NY to San Marcos, TX
That's the driving distance. It would take 1 day 9 hours to go from Schenectady, New York to San Marcos, Texas.
The flight distance (direct flight from Schenectady, NY to San Marcos, TX) is 1,597.84 mi.
1,857 mi = 2,988.79 kms