There are
1,617 mi
from Allentown, PA to Amarillo, TX
That's the driving distance. It would take 1 day 5 hours to go from Allentown, Pennsylvania to Amarillo, Texas.
The flight distance (direct flight from Allentown, PA to Amarillo, TX) is 1,477.13 mi.
1,617 mi = 1.61 kms