There are
539 mi
from Allentown, PA to Ypsilanti, MI
That's the driving distance. It would take 10 hours 4 mins to go from Allentown, Pennsylvania to Ypsilanti, Michigan.
The flight distance (direct flight from Allentown, PA to Ypsilanti, MI) is 435.49 mi.
539 mi = 866.92 kms