FlyerTalk Forums - View Single Post - Which airline to book through? Benefits or no difference?
Old Dec 29, 2019 | 9:55 am
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Andriyko
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Originally Posted by lcylocal

The only other difference I can think of is that if booking into the code share in classes J, C, D, W, Y then you would be eligible for Upgrade Using Avios which you would not be booking through AA.
It is not possible to upgrade codeshare flights with Avios.
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