Miles between Boulder, CO and Walla Walla, WA

There are
1,057 mi
from Boulder, CO to Walla Walla, WA

That's the driving distance. It would take 18 hours 15 mins to go from Boulder, Colorado to Walla Walla, Washington.

The flight distance (direct flight from Boulder, CO to Walla Walla, WA) is 779.83 mi.

1,057 mi = 1.61 kms