Norwegian Cruise Line is the only cruise line to operate roundtrip cruises every week from Honolulu to the Hawaiian Islands. Each sailing is for 7 nts. Other cruise lines in the spring and fall will operate longer sailings on one off dates from or to Vancouver, Los Angeles, San Diego and San Francisco. Those cruises tend to be 10 nts or longer in length. [Content protected for Members of InterlineTravel.com only, Sign up and join today! No Charge!]