Miles between Huntsville, AL and St Marys, PA

There are
800 mi
from Huntsville, AL to St Marys, PA

That's the driving distance. It would take 15 hours 23 mins to go from Huntsville, Alabama to St Marys, Pennsylvania.

The flight distance (direct flight from Huntsville, AL to St Marys, PA) is 636.67 mi.

800 mi = 1,287.78 kms