There are
2,807 mi
from Allentown, PA to Washougal, WA
That's the driving distance. It would take 2 days 1 hour to go from Allentown, Pennsylvania to Washougal, Washington.
The flight distance (direct flight from Allentown, PA to Washougal, WA) is 2,355.10 mi.
2,807 mi = 3.22 kms