Taking the Renfe can be the cheapest option to get into the city center as well as the most direct to your AAE Destination.
Immediately after exiting your terminal, look for the large tunnel that leads over a parking lot. It is pictured to the right and is difficult to miss no matter which terminal you arrive from. If you go up and across this tunnel it will take you directly into the Renfe Station. Inside the tunnel are moving walkways so it is not especially difficult to cross.
Inside the station you will see a desk as well as two ticket machines. You have a choice here. You can buy a one way "renfe ticket" all the way to Arc de Triumf for less than 3€ or you can go to the machines and buy a "T10" which is a ticket good for ten rides on ALL public transport within Barcelona. This ticket costs just under 7€ and TECHNICALLY is not supposed to be used from the airport, but all the machines accept it, and on the rare occasion that a guard might bother you, they usually don't care about tourists. Speak English and pretend not to understand the problem and they will just let you go.
Pictured is the correct button to press in order to buy a T10 Metro pass.
You will take the Renfe all the way to the Arc de Triumf and exit toward "Passeig San Joan"
and take a good look at the magnificent Arc de Triumf when you reach the street. Pictured below and to the right is the view form the Metro exit across the large street called Passeig Sant Joan. As you face this street the Arc de Triumf will be very difficult to miss on your left.
You want to cross Passeig Sant Joan and follow the street that goes slightly diagonally from Passeig Sant Joan. This street is called Ronda Sant Pere and is the street on which the Subirats is located. (On the right side of the photo, you are looking down this street).If you follow Ronda Sant Pere for one block and look to your left you will see the Subirats.You will want to cross the large street (Called Passeig Sant Joan) and take the street that goes off it at a slight diagonal and which is called Ronda Sant Pere. You will follow this street for one block before looking for thel Subirats on the left.
Welcome to Subirats