Currently, the airport is connected to the city center by a bus line (501), which goes from the Puerta del Carmen square, downtown, to the airport, also stopping at the city's main railway station: Zaragoza-Delicias. The station is an important hub for long-distance trains, AVE high-speed trains and the commuter line of Cercanías Zaragoza, which takes passengers underground through the city and overground in the metropolitan area.