There are
77 mi
from Allentown, PA to Sayreville, NJ
That's the driving distance. It would take 1 hour 42 mins to go from Allentown, Pennsylvania to Sayreville, New Jersey.
The flight distance (direct flight from Allentown, PA to Sayreville, NJ) is 60.19 mi.
77 mi = 123.92 kms