Received an email from Singapore Airlines recently about a New Years Sale (2017-18), with fares available over next Christmas / New Years period on sale until the 6th Feb. Managed to lock in return flight in early Jan 2018 from Syd - Tokyo return for circa $1k pp. After flying with them this year, the service, 30kg baggage allowance and easy transit through Singapore made it a no brainer. Other comparable full service airlines servicing between Australia and Japan (i.e Qantas) wanting $2500+ at this peak period. No thanks! Still able to get cheap fares right now - not sure how long the sale will run through too. Get on it.