Originally Posted by
BenjaminNYC
The thread is about two coach classes, Y and B. The subject of some Y fares that book into A is simply off-topic and will lead many to be confused in this thread.
Ok - I see your point. I disagree on relevance though. The OP asked what the difference is between them since the fare rules tend to be idetical (fully flexible). My answer was that sometimes many Y fares are YUPs and book into First class (A or P) thus explaining the price difference between Y and B. That point seems relevant to me.