There are
2,445 mi
from San Bernardino, CA to Johnstown, PA
That's the driving distance. It would take 1 day 19 hours to go from San Bernardino, California to Johnstown, Pennsylvania.
The flight distance (direct flight from San Bernardino, CA to Johnstown, PA) is 2,137.05 mi.
2,445 mi = 3.22 kms