 The Madrid–Barcelona air shuttle service, known as the "Puente Aéreo" (in Spanish), literally called "Air Bridge", used to be the busiest route between two EU airports with 55 daily flights in 2012.The schedule has been reduced since the February 2008 opening of the Madrid–Barcelona high-speed rail line which covers the distance in hours.Subsequently, the route has been overtaken by London-Dublin and Paris-Toulouse.