There are
748 mi
from Allentown, PA to Rantoul, IL
That's the driving distance. It would take 14 hours 28 mins to go from Allentown, Pennsylvania to Rantoul, Illinois.
The flight distance (direct flight from Allentown, PA to Rantoul, IL) is 665.60 mi.
748 mi = 1,203.66 kms