There are
2,636 mi
from Fontana, CA to Pottstown, PA
That's the driving distance. It would take 1 day 23 hours to go from Fontana, California to Pottstown, Pennsylvania.
The flight distance (direct flight from Fontana, CA to Pottstown, PA) is 2,317.67 mi.
2,636 mi = 4,241.75 kms