There are
2,401 mi
from San Marcos, CA to Hickory, NC
That's the driving distance. It would take 1 day 18 hours to go from San Marcos, California to Hickory, North Carolina.
The flight distance (direct flight from San Marcos, CA to Hickory, NC) is 2,037.97 mi.
2,401 mi = 3.22 kms