There are
1,345 mi
from Flagstaff, AZ to Tukwila, WA
That's the driving distance. It would take 1 day to go from Flagstaff, Arizona to Tukwila, Washington.
The flight distance (direct flight from Flagstaff, AZ to Tukwila, WA) is 1,009.17 mi.
1,345 mi = 2,165.27 kms