There are
2,320 mi
from Simpsonville, SC to Fullerton, CA
That's the driving distance. It would take 1 day 16 hours to go from Simpsonville, South Carolina to Fullerton, California.
The flight distance (direct flight from Simpsonville, SC to Fullerton, CA) is 2,026.05 mi.
2,320 mi = 3,733.70 kms