There are
2,434 mi
from San Marcos, CA to Salisbury, NC
That's the driving distance. It would take 1 day 19 hours to go from San Marcos, California to Salisbury, North Carolina.
The flight distance (direct flight from San Marcos, CA to Salisbury, NC) is 2,086.80 mi.
2,434 mi = 3.22 kms