Join Date: Jul 2005
Location: London, ARN, HEL, ..... or MAN
Programs: BA GGL / GFL, Mucci Diamond!, HH Diamond, Radisson Premium, IHG Gold, Hertz Gold
Posts: 5,899
As a note to the OP, as an AA lifetime Plat, then they will get Galleries Club access on any BA flight, irrespective of class or distance flown.
Unlike with AA in the US, lounge access for Sapphires and above isn't only for transcon or longhaul flights.