Miles between St Louis, MO and Allentown, PA

There are
863 mi
from St Louis, MO to Allentown, PA

That's the driving distance. It would take 16 hours 30 mins to go from St Louis, Missouri to Allentown, Pennsylvania.

The flight distance (direct flight from St Louis, MO to Allentown, PA) is 793.78 mi.

863 mi = 1,389.34 kms