Delta airlines makes offer to own 49% stake in AeromexicoNovember 18, 2015Ian Hayden ParkerMoreDelta Air Lines Inc (DAL.N) said Wednesday it intends to buy up to an additional 32 percent of Grupo Aeromexico SAB de CV (AEROMEX.MX), in what could be a nearly $600 million cash deal that strengthens its grip on a fast-growing market.