There are
2,613 mi
from Greenville, SC to Half Moon Bay, CA
That's the driving distance. It would take 1 day 22 hours to go from Greenville, South Carolina to Half Moon Bay, California.
The flight distance (direct flight from Greenville, SC to Half Moon Bay, CA) is 2,223.89 mi.
2,613 mi = 4,205.11 kms