There are
2,509 mi
from San Marcos, CA to Sanford, NC
That's the driving distance. It would take 1 day 20 hours to go from San Marcos, California to Sanford, North Carolina.
The flight distance (direct flight from San Marcos, CA to Sanford, NC) is 2,160.54 mi.
2,509 mi = 3.22 kms