If you book early and travel on the not so high demand flight time(hours), you can get real cheap ticket. I was just going to book flight from Kuala Lumpur - Penang for February which is only RM1.99 (about Yen 600) but ended up there are actually some administration charges plus the fuel charge which comes to about RM80 (Yen2600)..still quite cheap. If you know your schedule early and want to travel cheap, do consider this airline .