Metro line L9 Sud connects the airport terminals T1 and T2 with the city of Barcelona, every 7 minutes. There are three stations in this line where you can transfer to other lines of the network: Can Tries | Gornal (L10 Sud),Torrassa (L1 and L10 Sud), Collblanc (L5 and L10 Sud) and Zona Universitària (L3).
How do I get from Barcelona airport to center?
The RENFE train service runs approximately every 30 minutes to and from Barcelona airport to the city centre. Travel time approximately 25 minutes. You can catch the train from Clot, Passeig de Gràcia , or Barcelona Sants (otherwise known as Sants Estació) The name of the stop you want for the airport is Aeropuerto.