There are
1,166 mi
from Topeka, KS to Allentown, PA
That's the driving distance. It would take 22 hours 11 mins to go from Topeka, Kansas to Allentown, Pennsylvania.
The flight distance (direct flight from Topeka, KS to Allentown, PA) is 1,074.69 mi.
1,166 mi = 1.61 kms