I have this problem a lot if i'm not logged in and am in Korea it always defaults to won. Sometimes I have to log in and out a few times but usually it fixes itself. It happens when I'm here and I try to buy a ticket between NRT and anywhere in the states, PUS/ICN and anywhere in the states or domestic us to domestic us while I'm here. I've also recently had trouble getting it to show me that anything other than a Y fair is available when I'm in Asia