There are
637 mi
from Bethlehem, PA to Maryville, TN
That's the driving distance. It would take 12 hours 9 mins to go from Bethlehem, Pennsylvania to Maryville, Tennessee.
The flight distance (direct flight from Bethlehem, PA to Maryville, TN) is 575.12 mi.
637 mi = 1,024.88 kms