For the little bit it's worth, I found this in searching the net: Shangrila Tours//Dowon Travel Service Ltd. at phone number : 82-2-2272-4800. Check out more info at http://www.shangrila.co.kr/e-shangri...us/aboutus.htm

There's an e-mail also, but a fare like this is worth the international call. As a full Y, it seems refundable and changeable with free stopovers-- it should be good for a Pacific hop via GUM--HNL--mainland US.