A = first class, which does not exist on SAS flights. Last year I travelled cph-sea late January on a Friday, back on Monday, and there was plenty of room, not only empty 2's but empty 4's too. Keep an eye out for the discount classes: K,W, etc., and see if they sell out. Then look at the cheapest "normal" economy fares V and Q. If they are -9- then there will probably be plenty of room.