There are
557 mi
from Garland, TX to Leavenworth, KS
That's the driving distance. It would take 9 hours 43 mins to go from Garland, Texas to Leavenworth, Kansas.
The flight distance (direct flight from Garland, TX to Leavenworth, KS) is 452.33 mi.
557 mi = 895.74 kms