There are
2,407 mi
from San Clemente, CA to Weirton, WV
That's the driving distance. It would take 1 day 18 hours to go from San Clemente, California to Weirton, West Virginia.
The flight distance (direct flight from San Clemente, CA to Weirton, WV) is 2,085.10 mi.
2,407 mi = 3,873.70 kms