Just booked the week after Christmas. Planning on hitting up Niseko for some skiing.
Literally a $6000 difference between Air Canada and United flights right now if you search on Google Flights. The AC flights shows up at the low price and then jump when before you go to book. I tried tweeting them about it earlier but they blamed it on the Japanese airline even though it's clearly not. For example:
http://goo.gl/flights/xK8t
Anyway, seems like a great deal. If anybody has been skiing in Japan before I'd love to chat with ya (PM Me!)
(Does this mean sureLoss is expanding his coverage to include travel deals?)