Originally Posted by
zoombee
E.g. GRU-DFWx-NRTx-SIN has no YQ if straight through, and plenty if it were as stopovers. The reverse does has YQ (~$200). This can effect your routing quite a bit if you care about YQ and are happy for long flights connecting to long flights.
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I have a GRU-LHRx-FCO-surface-VIE-LHRx-YYZ and a separately issued JFK-GIG, all in first or business, issued by AA in the US for flights on BA and JJ with virtually no YQ. The total for all fees is around the USD 150-200 level. I don't know the exact charge because I've reissued several times, always for a tiny fee or rebate. A colleague of mine who got the same route, but in economy class, paid the same level of total fees. There was no higher fee for higher class that I could make out.