There are
1,051 mi
from St George, UT to Washougal, WA
That's the driving distance. It would take 18 hours 4 mins to go from St George, Utah to Washougal, Washington.
The flight distance (direct flight from St George, UT to Washougal, WA) is 741.40 mi.
1,051 mi = 1.61 kms