So to be brief, traveling BOS-LHR on AA in Business Class, then onward LHR-MXP on BA--who canceled our original flight in Club Europe, and we are now re-booked on a later flight, but in coach. My question relates to LHR lounge access. I was told by the AA people that our highest "flight status" (my words) applies to our whole booking, so we should be able to access lounges at LHR. We now have a 5 hr connection and I want a hot shower and food. Anyone have any experience/wisdom as to whether we will be able to access the Cathay or BA lounges in T3/T5?
Obviously, with that much time, we could go Landside and get the Arrivals lounge, and tube over to T5, but I have a faint hope that airside transiting will be less of a cluster (Dream on!)