Opened in 1975, the current Rodalies de Catalunya station is the only commuter rail station serving the airport, so that it is simply known as Airport (Catalan:Aeroport). Besides, it is due to disappear around 2018 with the construction of a new airport rail link, which will also reach airport terminal T1. The Barcelona Metro line 9 station started operating in February 2016, when the line's 20-kilometre-long (12mi) portion between the airport terminals and Zona Universitària station in western Barcelona opened for passenger service as the L9 Sud ("L9 South").
The upper level consist of an island platform between two tracks, while the mezzanine contains the fare gates inside the airport terminal. Since all trains are northbound from here, the island platform is set up such that the "southbound" side is for Doraville trains and the "northbound" side is for North Springs trains. This is the second busiest railway station on the MARTA system, only surpassed by Five Points.