There are
1,637 mi
from Amarillo, TX to Washougal, WA
That's the driving distance. It would take 1 day 4 hours to go from Amarillo, Texas to Washougal, Washington.
The flight distance (direct flight from Amarillo, TX to Washougal, WA) is 1,289.57 mi.
1,637 mi = 1.61 kms