Originally Posted by
vxmike
For example if you're OK with losing most of the SWP segments and you can use the seasonal MIA-ANC flight, you can get 82,000 with quite a bit of F.
lax-lhr-dxb-hel-dxb-lhr-syd-nrt-sin-nrt-dps-nrt-gru-eze-ccs-scl-lax-mia-anc-dfw-lax
That's not valid since the DXB-HEL AY flight is one that is not permitted per the fare rules (its a subclass of AY flights that is 1 class 200+ Y seats on a 757). Also, I believe the MIA-ANC flight was a quirk that happened only for a month this year. No guarantee that it will be there next year.
Also, the JFK-GRU-SCL-EZE-GRU-xJFK-HKG routing that the OP initially listed violates the return to country of origin rule, even if it is a transit. I believe the 1-coupon JAL flight GRU-NRT would also be invalid.