There are
1,156 mi
from Allentown, PA to Maryville, MO
That's the driving distance. It would take 22 hours 4 mins to go from Allentown, Pennsylvania to Maryville, Missouri.
The flight distance (direct flight from Allentown, PA to Maryville, MO) is 1,016.77 mi.
1,156 mi = 1.61 kms