Miles between Ontario, CA and Williamsport, PA

There are
2,582 mi
from Ontario, CA to Williamsport, PA

That's the driving distance. It would take 1 day 21 hours to go from Ontario, California to Williamsport, Pennsylvania.

The flight distance (direct flight from Ontario, CA to Williamsport, PA) is 2,256.83 mi.

2,582 mi = 3.22 kms