Looking at a CX segment HKG-SFO. For several days there are instances where EF is showing A4 for CX 870, but for the codeshare in EF is says A1 on AA 6074 (the AA codeshare of the exact same CX flight).

The thing is, if I go use the online booking tool, and input 2 passengers in first, then run the search on these same days for HKG-SFO it refuses to display CX 870 as an option. It only shows CX 872.

If, however, I change the number of passengers on the RTW online tool to 1, I am then able to get HKG-SFO to display CX 870 as well as CX 872.

This evidence suggests to me that the online tool is being filtered by something, which happends to coincide with the AA codeshare availability that is showing on EF, rather than the true CX availability according to EF. So, I wonder and worry that when I call the AA RTW desk, they'll only be able to see the A1 availability and not the A4 availability CX is showing on EF.

The quickest way to answer this is to just call the AA RTW desk. Still, I found it curious enough to post on FT. I'm relatively new to the OW forum, but a search for "filter" did not result in a number of threads talking about any airline filtering availability (unlike the *A forum, where they're a dime a dozen). So does CX filter A class availability to everyone else? Any workaround?