There are
451 mi
from St Paul, MN to Leavenworth, KS
That's the driving distance. It would take 8 hours 26 mins to go from St Paul, Minnesota to Leavenworth, Kansas.
The flight distance (direct flight from St Paul, MN to Leavenworth, KS) is 400.98 mi.
451 mi = 726.36 kms