Alaska Air Lines via ShermansTravel offers select Alaska Airlines Roundtrip Fares to Seattle, WA and Portland, OR with prices starting from $118.40. (On the ShermansTravel landing page, click on "AlaskaAir.com" in the main paragraph to see this sale.) That's the best price we could find for select routes by at least $11, although we saw such fares for $2 less last week. Book this travel deal by August 31.

All prices, dates, and booking details were valid at the time of publication.