There are
517 mi
from Olathe, KS to Grapevine, TX
That's the driving distance. It would take 8 hours 58 mins to go from Olathe, Kansas to Grapevine, Texas.
The flight distance (direct flight from Olathe, KS to Grapevine, TX) is 429.87 mi.
517 mi = 831.50 kms