There are
1,998 mi
from Plano, TX to Washougal, WA
That's the driving distance. It would take 1 day 11 hours to go from Plano, Texas to Washougal, Washington.
The flight distance (direct flight from Plano, TX to Washougal, WA) is 1,612.24 mi.
1,998 mi = 3,216.06 kms