I think that the best place for this thread is in the Travel Buzz forum. It doesn't appear that the OP is particular as to which airline he flies, but rather wants to find the most affordable way to get to Japan. Yes, he wants to use his Hilton nights, and yes, he found those nights in the mileage run forum - but neither forum are the best place to discuss flights to get there.
If there are better suggestions as to where this question can be answered, please PM me.
SanDiego1K
Senior Moderator