There are
2,739 mi
from Summerville, SC to San Mateo, CA
That's the driving distance. It would take 2 days to go from Summerville, South Carolina to San Mateo, California.
The flight distance (direct flight from Summerville, SC to San Mateo, CA) is 2,377.84 mi.
2,739 mi = 4,407.19 kms