That asda site is great too, as it picks up premium economy etc. Thanks!!

Almost there with answers to my questions!!

Only thing I'm still struggling on is different classes of economy e.g. a HKG-LHR end of may on Air New Zealand and there is the L class it finds on ATI/Asda which is non mile earning.

On the Air New Zealand website there is the option of Global Saver Max fare under which the rules say no airmiles will be accured on partner FFPs- I assume this is the L class flight.

Then there is the option of the Global Saver which does say that airmiles may be accrued on partner FFPs, but I can't tell which class it is (though I appreciate in this example that most earning economy ANZ classes are 1.0x). It's only about 15 quid more so would rather get the 6000 miles for 15 quid than not.

Any way to sort out same airline with multiple economy classes?