Looks like Jetstar have finally announced another Japan Sale!!! Pricing starts from $149 (Cairns to Tokyo). See below for other destinations. Travel period from 9th May 2012 - 27 Jun 2012.
Prices to Osaka and Tokyo are the same this time. Prices below are oneway. Check site for more details
- Gold Coast to Osaka, Tokyo $199 ($177 return!!)
- Sydney $377
- Melbourne (Tullamarine) $390
- Cairns $149
Also there's some additional cheaper flights with stopovers at Cairns (from Sydney and Melbourne).
The page doesn't work for me. The selection boxes only have "all…" in them, there's no button to click to search, and a few lines below that says "Loading… Sorry, no sales or special offers fares were found for your selections".