There are
1,116 mi
from Allentown, PA to St Joseph, MO
That's the driving distance. It would take 21 hours 19 mins to go from Allentown, Pennsylvania to St Joseph, Missouri.
The flight distance (direct flight from Allentown, PA to St Joseph, MO) is 1,020.85 mi.
1,116 mi = 1.61 kms