Sorry if this has been asked before, I am looking at the 9:45am departure from JFK to LHR and I get the option to pay a little more for Flagship First, which I realise would be on the ground only experience as there is no First Class on the plane. Then when I look at the AA website it doesnt list many facilities at JFK that would be different, so I was wondering what I would be getting for the extra money other than Group 1 rather 1/2 boarding which it lists specifically.

Many thanks