There are
2,648 mi
from San Leandro, CA to Johnstown, PA
That's the driving distance. It would take 1 day 22 hours to go from San Leandro, California to Johnstown, Pennsylvania.
The flight distance (direct flight from San Leandro, CA to Johnstown, PA) is 2,304.52 mi.
2,648 mi = 4,261.64 kms