There are
282 mi
from Topeka, KS to Ottumwa, IA
That's the driving distance. It would take 5 hours 36 mins to go from Topeka, Kansas to Ottumwa, Iowa.
The flight distance (direct flight from Topeka, KS to Ottumwa, IA) is 220.12 mi.
282 mi = 453.85 kms