There are
742 mi
from Olathe, KS to Lockhart, TX
That's the driving distance. It would take 12 hours 42 mins to go from Olathe, Kansas to Lockhart, Texas.
The flight distance (direct flight from Olathe, KS to Lockhart, TX) is 642.40 mi.
742 mi = 1,194.65 kms