There are
647 mi
from Thornton, CO to Wichita Falls, TX
That's the driving distance. It would take 12 hours 4 mins to go from Thornton, Colorado to Wichita Falls, Texas.
The flight distance (direct flight from Thornton, CO to Wichita Falls, TX) is 545.03 mi.
647 mi = 1,041.89 kms