There are
990 mi
from Allentown, PA to Wausau, WI
That's the driving distance. It would take 18 hours 40 mins to go from Allentown, Pennsylvania to Wausau, Wisconsin.
The flight distance (direct flight from Allentown, PA to Wausau, WI) is 776.14 mi.
990 mi = 1,593.07 kms