Originally Posted by
bdsklar
unable to find dates that this fare works any longer - please advise
It looks like the fares from the AY gateways (e.g. JFK) have different routing rules from those that are not (e.g. BOS). Starting in JFK does not allow domestic connections but allows unlimited connections in DUB/LON/MAN/PAR on flights with AY codes. Starting in BOS costs more ($3400), but allows unlimited connections in CHI/LAX/MIA/NYC/SFO. However, the transcon flights don't seem to be bookable with AY codes, only AA codes, which will affect your EQD earning on those segments; AA will basically assign you an arbitrary number that will probably be lower than 0.25 * distance that you are getting for the AY flights.
Unfortunately, there really are not very many good mileage run routings for this fare because there seem to be a lot of long connections. Note that a stopover in HEL is free if you want to break up the trip.
If you are searching on ITA Matrix, from a non-gateway city (e.g. BOS-SIN) try the advanced routing code
aa,ay+ ay hel ay hkg,bkk? on the way out and
hkg,bkk? ay hel ay aa,ay+ on the return.