Was poking around EF for some ideas and see some U space on SEA-HNL open the last week of February and first weeks of March. Largely available Sunday, Monday and Tuesday, and easier to find on the evening flight that lands at 10:10pm in HNL (AS145) but also on AS853 that leaves at 7:00am. Also seeing some pairs of U on the ANC-HNL route that week. Tuesday 3/5 on AS145 has 3 U spaces open.