Miles between Boulder, CO and Duluth, MN

There are
1,079 mi
from Boulder, CO to Duluth, MN

That's the driving distance. It would take 19 hours 2 mins to go from Boulder, Colorado to Duluth, Minnesota.

The flight distance (direct flight from Boulder, CO to Duluth, MN) is 808.25 mi.

1,079 mi = 1.61 kms