There are
260 mi
from Topeka, KS to Sioux City, IA
That's the driving distance. It would take 4 hours 58 mins to go from Topeka, Kansas to Sioux City, Iowa.
The flight distance (direct flight from Topeka, KS to Sioux City, IA) is 240.86 mi.
260 mi = 418.75 kms