There are
318 mi
from Iowa City, IA to Leavenworth, KS
That's the driving distance. It would take 6 hours 2 mins to go from Iowa City, Iowa to Leavenworth, Kansas.
The flight distance (direct flight from Iowa City, IA to Leavenworth, KS) is 241.09 mi.
318 mi = 510.98 kms