Lounge HIMAWARI at Kitakyushu sits airside on the 2nd floor after domestic security. Official hours are 07:00–21:00 with ¥880 adult / ¥440 child walk-up, eligible Japanese premium cards free, and paid alcoholic drinks. It is departure-only and enforces strict outside-food and phone rules. Priority Pass does not list KKJ. StarFlyer Haneda banks are the primary reason most travelers clear security here.