Miles between Thornton, CO and Grand Forks, ND

There are
935 mi
from Thornton, CO to Grand Forks, ND

That's the driving distance. It would take 16 hours 31 mins to go from Thornton, Colorado to Grand Forks, North Dakota.

The flight distance (direct flight from Thornton, CO to Grand Forks, ND) is 681.96 mi.

935 mi = 1,504.43 kms