There are
1,305 mi
from Denver, CO to Tukwila, WA
That's the driving distance. It would take 22 hours 43 mins to go from Denver, Colorado to Tukwila, Washington.
The flight distance (direct flight from Denver, CO to Tukwila, WA) is 1,012.85 mi.
1,305 mi = 1.61 kms