Miles between Thornton, CO and Roy, UT

There are
502 mi
from Thornton, CO to Roy, UT

That's the driving distance. It would take 8 hours 35 mins to go from Thornton, Colorado to Roy, Utah.

The flight distance (direct flight from Thornton, CO to Roy, UT) is 381.04 mi.

502 mi = 807.70 kms