Alaska Airlines is handing out $50 discount codes for signing up with their free Mileage Plan frequent flyer program. Discount is limited to California residents departing from a California city to any Alaska Air destination. Travel must be completed by November 10th with a minimum $100 fare. Since Alaska Air has matched United's $299 West Coast to Hawaii sale, this discount could get you a roundtrip flight from Oakland to Lihue (Kauai) for $246. Note that very few weekend slots are available in terms of the sale. Alaska Air flies to Honolulu, Kahalui (Maui), Kona (Big Island), and Lihue out of San Jose and Oakland.
OAK to LIH for October: