Miles between Thornton, CO and Walla Walla, WA

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

That's the driving distance. It would take 18 hours 8 mins to go from Thornton, Colorado to Walla Walla, Washington.

The flight distance (direct flight from Thornton, CO to Walla Walla, WA) is 798.59 mi.

1,057 mi = 1.61 kms