Barcelona Airport Transport: Airbus Shuttle

A1 line goes to the Terminal 1 ( T1) and A2 line goes to Terminal 2 (T2).
As the two lines have different bus stops ( although next to each other ), it is very important to stand on the correct one, so you don`t go to the other airport terminal. The bus stops are located as follows:
Plaça Catalunya - A1 and A2 bus stops are located on the right side of the square if you are coming from the Ramblas
Plaça Espanya - a single bus stop both for A1 and A2 is located opposite to the Palau Nacional

Price:
single ticket: 5.65 EUR ; two-way ticket: 9.75 EUR

Detailed information about the A1 and A2 can be found on the official Airbus Shuttle web-site:
http://www.aerobusbcn.com/

Important notice:
No matter which Terminal you are going to before departure, it is very important to be early at the Airbus bus stations, as there might be a crowd of people also wanting to go to the airport. Even if you can not board the first bus to arrive at the station, a next one will follow shortly and you can still get to the airport in time.

Barcelona Bus Transport

There are bus stations at every street corner and it is very easy to understand which bus lines pass by and their exact routes. The network consists of more than 100 bus lines, covering the both the city center and the whole Barcelona area. The buses pass each every minutes and you can use this time to reach at your backpack for a sip of water and to think about the next sites you are about to see.

In case you like detailed planning and you want to check the lines' directions up-front, check them on the official Barcelona municipal transport web-site:
http://www.tmb.cat/en/linias-de-bus

Prices:
single ticket: 2 EUR
travel cards: 2 days/12.80 EUR ; 3 days/18.50 EUR; 4 days/23.50 EUR;  5 days/28.00 EUR
Discounts information and ingegrated transport options available on TMB web-site

Important : Both bus and metro municipal Barcelona transport can be used for free for 3 days with the Barcelona Card, once it is avtivated.