There are
2,741 mi
from Williamsport, PA to Hayward, CA
That's the driving distance. It would take 1 day 23 hours to go from Williamsport, Pennsylvania to Hayward, California.
The flight distance (direct flight from Williamsport, PA to Hayward, CA) is 2,390.61 mi.
2,741 mi = 4,410.48 kms