As I said, BA cant add services to anywhere without withdrawing somewhere else. " Consolidating" S American routes with IB = BA withdrawing. All they would get out of IB operation is a few points of commission for seats sold under the BA codeshare flight designator. In effect they would be out of the S American game and IB would take virtually all the revenue if passengers continued to buy BA tickets,- which they would probably pretty soon realise was a pointless fiction anyway as there would be no elements of the BA product on board.