There are
514 mi
from Denton, TX to Leavenworth, KS
That's the driving distance. It would take 8 hours 56 mins to go from Denton, Texas to Leavenworth, Kansas.
The flight distance (direct flight from Denton, TX to Leavenworth, KS) is 438.80 mi.
514 mi = 827.36 kms