There are
2,385 mi
from San Bernardino, CA to Clarksburg, WV
That's the driving distance. It would take 1 day 18 hours to go from San Bernardino, California to Clarksburg, West Virginia.
The flight distance (direct flight from San Bernardino, CA to Clarksburg, WV) is 2,063.16 mi.
2,385 mi = 3.22 kms