There are
2,298 mi
from Clemson, SC to Downey, CA
That's the driving distance. It would take 1 day 16 hours to go from Clemson, South Carolina to Downey, California.
The flight distance (direct flight from Clemson, SC to Downey, CA) is 2,004.57 mi.
2,298 mi = 3,698.38 kms