They are located adjacent to the airport's terminal T2B, in the municipality of El Prat de Llobregat, to the southwest of Barcelona, in Catalonia, Spain.

[6] On 28 May 1989 (1989-05-28), with the dismantling of the former route of the Barcelona–Mataró–Maçanet-Massanes railway through the Barcelona neighborhood of Poblenou, the airport station began to serve as the southern terminus of all commuter rail services running from Mataró.

All those trains used the Meridiana Tunnel in central Barcelona, calling at Sants and Plaça de Catalunya stations, with an initial service frequency of 30 minutes in each direction.

[7][8] Due to the construction works of the Madrid–Barcelona high-speed rail line in Barcelona's southern accesses, the services between Mataró and the airport station were suspended on 4 December 2005 and replaced with shuttle trains between the airport and El Prat de Llobregat railway station.

[10] Due to construction works near Sant Andreu Comtal railway station in Barcelona, a "temporary" restructuring affecting lines R2 and R10 was implemented on 31 January 2009 (2009-01-31): the R10 was suspended and the R2 was divided into three different lines—R2, R2 Nord ("North") and R2 Sud ("South")—.

[13] In June 2014, the government announced that the Airport T1–Zona Universitària section, excepting Aeroport Terminal de Càrrega, La Ribera and Camp Nou stations, would open in the first six months of 2016.

[15] The Rodalies de Catalunya station is served half-hourly by Barcelona commuter rail service line R2 Nord.

Typical weekday services usually run between the airport and Maçanet-Massanes or Sant Celoni stations, via Barcelona.

[20] There is also a project to extend Barcelona Metro line 2 (L2) southwards using the route of the L9 between Parc Logístic and Airport T1 stations.