FYI: I just posted this on another thread, but thought maybe I'd pull it out, and repost it for anyone travelling in the next few months.
Another poster (MauiNoKaOi) noted the other day that Alaska fares from Oakland to OGG dropped recently. And we just received an email notice via TripIt.com (where we "file" our travel plans) that our Hawaiian Air fares in early May have dropped by $370 (for both--fare from SEA now $470rt). There is a $300 change fee, but we'd still save $70. As my husband would say, better than a poke in the eye! (Now the question, go for refund now, or wait for further drops...hmmmm...)