There are
2,730 mi
from Chesapeake, VA to San Marcos, CA
That's the driving distance. It would take 2 days to go from Chesapeake, Virginia to San Marcos, California.
The flight distance (direct flight from Chesapeake, VA to San Marcos, CA) is 2,310.89 mi.
2,730 mi = 4,393.06 kms