I suggest Carnival Cruise Lines. Vancouver to Honolulu or San Diego to Honolulu. These are repositioning cruises for Carnival Spirit. Usually done in April and September. They were 12 days.
“Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.“