The investigation into the two GDSs, the commission said in a statement, will examine if their agreements with airlines and travel agencies are restricting agencies' ability to use other ticket distribution services. In a statement, commissioner Margrethe Vestager said, "We are concerned that such restrictions could create barriers to innovation and raise ticket distribution costs, ultimately raising ticket prices for travelers." There is no legal deadline limiting the length of the investigation; that depends on a number of factors, the commission said, including the case's complexity and the cooperation of the companies involved. Sabre and Amadeus have indicated they would fully cooperate. Get the full story at Travel Weekly Read also "European Commission investigates Amadeus and Sabre for anticompetitive practices"