Miles between Boulder, CO and Marysville, WA

There are
1,321 mi
from Boulder, CO to Marysville, WA

That's the driving distance. It would take 23 hours 5 mins to go from Boulder, Colorado to Marysville, Washington.

The flight distance (direct flight from Boulder, CO to Marysville, WA) is 1,003.34 mi.

1,321 mi = 1.61 kms