There are
2,564 mi
from Fontana, CA to Harrisburg, PA
That's the driving distance. It would take 1 day 21 hours to go from Fontana, California to Harrisburg, Pennsylvania.
The flight distance (direct flight from Fontana, CA to Harrisburg, PA) is 2,252.55 mi.
2,564 mi = 4,125.58 kms