There are
1,558 mi
from Allentown, PA to Mandan, ND
That's the driving distance. It would take 1 day 4 hours to go from Allentown, Pennsylvania to Mandan, North Dakota.
The flight distance (direct flight from Allentown, PA to Mandan, ND) is 1,332.24 mi.
1,558 mi = 2,506.71 kms