Haven't looked into this too much yet, but I'm seeing CGK-NRT on JL for around $215rt on JL. So far I'm only able to get it to price on
www.tiket.com, which is a legit TA based in Indonesia.
Not sure what fare class it books into; hopefully a mileage earning one for AS. Will update when I find out.
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Update: Looks like it books into 'Q'
30% + 25% on AS
30% on AA
50% on CX
That's 2.9 cpm flown, less when factoring in elite miles. I think this is better suited for the good economy deals thread.