Miles between Boulder, CO and Sammamish, WA

There are
1,286 mi
from Boulder, CO to Sammamish, WA

That's the driving distance. It would take 22 hours 28 mins to go from Boulder, Colorado to Sammamish, Washington.

The flight distance (direct flight from Boulder, CO to Sammamish, WA) is 986.58 mi.

1,286 mi = 1.61 kms