The merged American Airlines-US Airways would be the world 's largest airline . Lawsuit : The merger would `` substantially lessen competition '' for air travel . " Comment: The European Union this month cleared the merger with the condition that the airline give up slots to allow new competition in the Philadelphia-to-London route . It isn't a monopoly, it has to compete with other airlines and that means they have to lower prices or raise fares in order to do so. NEW : American/US Airways say they will fight government attempt to block their deal .
The merged American Airlines-US Airways would be the world 's largest airline . Lawsuit : The merger would `` substantially lessen competition '' for air travel . " Comment: It isn't a monopoly, it has to compete with other airlines and that means they have to lower prices or raise fares in order to do so. NEW : American/US Airways say they will fight government attempt to block their deal .