Miles between Thornton, CO and Williston, ND

There are
670 mi
from Thornton, CO to Williston, ND

That's the driving distance. It would take 12 hours 41 mins to go from Thornton, Colorado to Williston, North Dakota.

The flight distance (direct flight from Thornton, CO to Williston, ND) is 575.94 mi.

670 mi = 1,077.76 kms