One of the Japanese travel agencies is doing the airfare sale until tomorrow, 2/1, until 4pm pst.
If you are a West coaster, this may be a good deal. Starting from $810.
If you are near Seattle, they have their own sale which is an even better deal.
Seattle - Haneda (Airport much closer to downtown Tokyo than Narita) with one night hotel stay at the airport hotel in Haneda Airport starting from $725.
This is one of the biggest Japanese travel agencies in the States and very reputable.
Hope this helps someone planning for a trip to TDR!