There are
735 mi
from Olathe, KS to Brenham, TX
That's the driving distance. It would take 12 hours 56 mins to go from Olathe, Kansas to Brenham, Texas.
The flight distance (direct flight from Olathe, KS to Brenham, TX) is 608.75 mi.
735 mi = 1,183.64 kms