There are
605 mi
from Arvada, CO to Leavenworth, KS
That's the driving distance. It would take 10 hours 26 mins to go from Arvada, Colorado to Leavenworth, Kansas.
The flight distance (direct flight from Arvada, CO to Leavenworth, KS) is 542.24 mi.
605 mi = 973.49 kms