I just played around with it a little more. If you are willing to do something like this it will come out to 90,000 miles and $56.90 taxes/fees
02/23/2011 PEK-HNL
03/08/2011 HNL-SFO
03/14/2011 SFO-PEK
Note: all days above were marked as "low" on the calendar.