There are
745 mi
from Olathe, KS to Seabrook, TX
That's the driving distance. It would take 13 hours 57 mins to go from Olathe, Kansas to Seabrook, Texas.
The flight distance (direct flight from Olathe, KS to Seabrook, TX) is 643.87 mi.
745 mi = 1,199.39 kms