Thanks for the reply. Yes I realise that, I previously achieved *A Gold on Aegean despite never flying with them a single time.

But my understanding is that some airlines may credit more (or at all - for some discount tickets) than others on partner flights, and I was wondering if anyone knows how Asiana compares to Turkish Airline.

Realistically, I think that those are the only two airlines I have a chance of reaching and keeping *A Gold (which is the goal).

Edit: Okay, I found the two pages (https://au.flyasiana.com/C/en/homepa...0&menuType=CMS and http://www.turkishairlines.com/en-in...s/when-you-fly) that answers my questions.

1. For Air Canada, Turkish Airline is better for Business and Premium Economy.
2. For Eva, Turkish Airline is better for Business and H Class.
3. For Air New Zealand, Turkish Airline is better for Business class, while Asiana is better for many discount Economy.
4. For SAS, Turkish Airline is better for Business class and a whole bunch of Economy class and above.
5. For ANA, Turkish Airline is better for Business class, and some heavy discount economy, while Asiana is better for almost full fare Economy.
6. For United, Turkish Airline is better for some premium class and heavy discount economy.

It seems like Turkish Airline does win far more often than not on top of having a slightly lower requirement for keeping *A Gold. On the other hand, Asiana has that *A Gold for life after 500k.

Edit2: May I check that I am reading the redemption charts correctly? (https://kr.flyasiana.com/C/en/homepa...0&menuType=CMS and http://www.turkishairlines.com/en-in...d-ticket-chart)

If I do Japan -> North America it would be 75k on Asiana but 115k on Turkish Airline?
And Japan -> Australia or New Zeland is again 75k on Asiana but 80k on Turkish Airline?

Cheers.