There are
531 mi
from Overland Park, KS to Watauga, TX
That's the driving distance. It would take 9 hours 15 mins to go from Overland Park, Kansas to Watauga, Texas.
The flight distance (direct flight from Overland Park, KS to Watauga, TX) is 447.11 mi.
531 mi = 854.95 kms