Originally Posted by ScienceTeacher

Think I have now maxed this out, 1120 TP's for £1404. Completely forgot about AS and AT being one world, so this fare works via three continents. Rules do not mention CMN but it works for transfers too.

Doing the final sector both ways, in Y, PHX-PSP-PHX is what drops the price by circa $500.00 to the GBP above.

Hint: You can do LHR-HEL-AGP-(stopover)-LHR-MAD on the return which appears to reset the transfer count - but I suspect LHR-HEL-MAD is causing problems when I run it for flight six.. Powertools work for AA/Europe on this routing. (edit: yes, for $150 you can stopover in AGP then do LHR-HEL-AGP-MAD again for an extra $56 but this results in 18 flights and nobody will book this!). 16 flight limit?

Starting in Dub is a must, but you can end in San Jose, Palm Springs or Santa Barbara it seems - and return for not a dissimilar price. You can shave £150 by ending in MAD (via AGP, BCN) or VCE (BA).

I've definitely gone over 125% MPM but it its bookable, and I assume ticket able via AA and Expedia (edit: can confirm it is bookable on AA EUR site, inspect page and view the record locator there before payment. I've now called and paid, £1502 for 1310 TP Hope they schedule change to make it onto the transcon.).

You can price it up via BA Holidays too, directly with non intuitive flights - DUB-PHX for example. Perks being distance based Avios and time to pay.

A friend has found £1364 for 1040 TP by doing a slightly different US shuffle (MIA-AUS-JFK-PHX-PSP)