Miles between Greeley, CO and Williston, ND

There are
647 mi
from Greeley, CO to Williston, ND

That's the driving distance. It would take 12 hours 25 mins to go from Greeley, Colorado to Williston, North Dakota.

The flight distance (direct flight from Greeley, CO to Williston, ND) is 536.36 mi.

647 mi = 1,040.53 kms