IAG's plan to buy Aer Lingus and build a new transatlantic hub at Dublin airport won the support last week of Ryanair , which holds a 30pc stake in its rival, after convincing the Irish government to sell its 25pc stake in May .
headquarters_location: Aer Lingus, Dublin airport; location_of_formation: Aer Lingus, Dublin; headquarters_location: Ryanair, Dublin airport