There are
2,289 mi
from Upland, CA to Simpsonville, SC
That's the driving distance. It would take 1 day 16 hours to go from Upland, California to Simpsonville, South Carolina.
The flight distance (direct flight from Upland, CA to Simpsonville, SC) is 2,007.33 mi.
2,289 mi = 3,684.57 kms