Miles between Thornton, CO and Riverton, WY

There are
342 mi
from Thornton, CO to Riverton, WY

That's the driving distance. It would take 6 hours 43 mins to go from Thornton, Colorado to Riverton, Wyoming.

The flight distance (direct flight from Thornton, CO to Riverton, WY) is 280.54 mi.

342 mi = 550.31 kms