There are
1,310 mi
from Arvada, CO to Seatac, WA
That's the driving distance. It would take 22 hours 47 mins to go from Arvada, Colorado to Seatac, Washington.
The flight distance (direct flight from Arvada, CO to Seatac, WA) is 1,007.78 mi.
1,310 mi = 1.61 kms