Originally Posted by
golfer20
EXP AAgent told me that the "transatlantic" phrasing was for Y -> PE on BA vs. Y -> J on AA or Y -> J on BA Europe. I do find the wording confusing in the T&Cs, though.
Also possible the person I spoke to had it wrong and the policy will be clarified later. Either way, Club Europe is hardly better and often worse than AA MCE.
Given that the T&Cs is very clear that the BA upgrades are on transatlantic flights only, I would take it as almost certain that the agent was wrong
The description on the page refers to transatlantic and the T&Cs state it too - plus there is nothing to indicate an economy to business upgrade option