Miles between Thornton, CO and Vermillion, SD

There are
558 mi
from Thornton, CO to Vermillion, SD

That's the driving distance. It would take 10 hours 23 mins to go from Thornton, Colorado to Vermillion, South Dakota.

The flight distance (direct flight from Thornton, CO to Vermillion, SD) is 463.01 mi.

558 mi = 897.55 kms