Hawaiian Airlines continually offers flights for reasonable rates to its hub in Honolulu. From there it will help you connect to the other islands if you choose. Keep in mind however, that it doesn't offer a large number of flights. Many of these flights arrive and depart Honolulu within only a few hours making the Honolulu airport quite hectic. Its ticket agents also are limited in their ability to solve ticket issues should problems arise.
Alaska's rates are in the same range as Hawaiian's. From Seattle it offers direct daily service to Maui, Kauai, Honolulu and Kona. Its flights leave at various times through the day making it easy to work into your schedule. Alaska is proud of its Northwest hub and features wine and beer selections from the Northwest on its flights.
American Airlines has a range of ticket prices to Hawaii but a few flights a day are as low as Hawaiian and Alaska. It flies to Honolulu, Kauai, Maui and Kona. It guarantees its fares are lowest and should you find a lower price within 24 hours on another airline for the same itinerary, it will reimburse you the difference.
