There are
2,310 mi
from Tempe, AZ to Allentown, PA
That's the driving distance. It would take 1 day 18 hours to go from Tempe, Arizona to Allentown, Pennsylvania.
The flight distance (direct flight from Tempe, AZ to Allentown, PA) is 2,055.49 mi.
2,310 mi = 3.22 kms