There are
2,601 mi
from Williamsport, PA to Arcadia, CA
That's the driving distance. It would take 1 day 22 hours to go from Williamsport, Pennsylvania to Arcadia, California.
The flight distance (direct flight from Williamsport, PA to Arcadia, CA) is 2,274.57 mi.
2,601 mi = 4,186.33 kms