Miles between Thornton, CO and Guymon, OK

There are
368 mi
from Thornton, CO to Guymon, OK

That's the driving distance. It would take 7 hours 12 mins to go from Thornton, Colorado to Guymon, Oklahoma.

The flight distance (direct flight from Thornton, CO to Guymon, OK) is 290.24 mi.

368 mi = 591.96 kms