There are
1,503 mi
from Allentown, PA to Huntsville, TX
That's the driving distance. It would take 1 day 4 hours to go from Allentown, Pennsylvania to Huntsville, Texas.
The flight distance (direct flight from Allentown, PA to Huntsville, TX) is 1,312.26 mi.
1,503 mi = 1.61 kms