Originally Posted by
theworld
But in this case I might be booking HX fare, but flying *A metal (AI). So you are saying as I'm not booking a *A fare, I won't get any *A benefits.
I have gotten miles and *G benis before when I was on a codeshare flight operated by a *A carrier. YMMV here and it does depend on the carrier. When you come with an AI BP and a *G card to a *G lounge I don't see how they can refuse entry. Earning miles will be a different story, that's more tricky whether A3 will allow it.