Miles between Thornton, CO and Leavenworth, KS

There are
603 mi
from Thornton, CO to Leavenworth, KS

That's the driving distance. It would take 10 hours 23 mins to go from Thornton, Colorado to Leavenworth, Kansas.

The flight distance (direct flight from Thornton, CO to Leavenworth, KS) is 536.19 mi.

603 mi = 970.66 kms