There are
2,621 mi
from Temecula, CA to Williamsport, PA
That's the driving distance. It would take 1 day 22 hours to go from Temecula, California to Williamsport, Pennsylvania.
The flight distance (direct flight from Temecula, CA to Williamsport, PA) is 2,247.47 mi.
2,621 mi = 3.22 kms