Originally Posted by
SpammersAreScum
I have to wonder whether including fare class S was an error? AA says that's a "deep discount economy fare", like Q, only earning .5 EQP

. I did an ITA Matrix search for DCA-SIN listing all the allowed codes (/ f bc=F|bc=A|...|bc=S), and not surprisingly the cheapest was S, at $1321. With the bonus, miles earned would be over 40,000, for a cpm of 3.2-3.3 depending on routing. Wow.
If I drop S from the query, cheapest is V at $1623; still not to be sneezed at.
The T&Cs say the bonus is for nonstop travel TPAC so it wouldn't apply to intra-Asia flights. However there is another offer JPS15 which covers those albeit with some windows in mid Feb (around CNY) where it's a no-go.