Airports
Barcelona is served by Barcelona International Airport in the town of El Prat de Llobregat, about 3 km (2 mi) from Barcelona. It is the second-largest airport in Spain, and the largest on the Mediterranean coast. It is a main hub for Vueling Airlines and Clickair, and also a focus for Spanair, Air Europa and Iberia. The airport mainly serves domestic and European destinations, but some airlines offer destinations in Asia and the United States. The airport is connected to the city by highway, commuter train and scheduled bus service. The airport handled 30,008,152 passengers in 2006. A new terminal is being built, and it is expected to enter service in 2008.
Sabadell Airport is a smaller airport in the nearby town of Sabadell, devoted to pilot training, advertising flights, aerotaxi and private flights. Some low-cost airlines, like Ryanair and Martinair, prefer to use Girona-Costa Brava Airport, situated about 90 km (56 mi) to the north of Barcelona and Reus Airport, situated 77 km (48 mi) to the south.
Seaport

The Port of Barcelona has a 2000-year history and a great contemporary commercial importance. It is the most important Mediterranean port for general cargo of containers and cruisers. The port is managed by the Port Authority of Barcelona. Its 7.86 km² (3 sq mi) are divided into three zones: Port Vell (the Old Port), the commercial port and the logistics port (Barcelona Free Port). The port is undergoing an enlargement that will double its size thanks to diverting the mouth of the Llobregat river 2 km (1¼ mi) to the south.
The Port Vell area also houses the Maremagnum (a commercial mall), a multiplex cinema, the IMAX Port Vell and an aquarium.
Public transportation

Barcelona is served by a comprehensive local public transport network that includes a metro, a bus network, two separate tram networks (one of them, the Tramvia Blau, connects to the Tibidabo funicular), and several funiculars and aerial cable cars. The Barcelona Metro network comprises nine lines, identified by an "L" followed by the line number as well as by individual colours. Most of the network is operated by the Transports Metropolitans de Barcelona (TMB), but three lines are FGC commuter lines that run through the city. When finished, the L9 will be the longest underground metro line in Europe with 42.6 km.
The TMB also operates the city's tram networks, known as Trambaix and Trambesòs, and the city's daytime bus network, as well as a tourist bus service. The night bus network, known as Nitbus, is operated by Mohn. Transports Ciutat Comtal operates the regular Tomb Bus (along the Diagonal avenue) and Aerobus (to the airport) services. Other companies operate services that connect the city with towns in the metropolitan area.
The Funicular de Montjuïc climbs the Montjuïc hill. The Vallvidrera and Funicular de Tibidabo funiculars climb the Tibidabo hill. The city has two aerial cable cars: one to the Montjuïc castle and another that runs via Torre Jaume I and Torre Sant Sebastia over the port.

Barcelona is a major hub for RENFE, the Spanish state railway network, and its main intercity train station is Barcelona-Sants station. The AVE high-speed rail system was recently extended from Madrid to Tarragona in southern Catalonia, and is expected to reach Barcelona by 2007. Renfe cercanías/rodalies and the Ferrocarrils de la Generalitat de Catalunya (FGC) run Barcelona's widespread commuter train service.
The Estació del Nord (Northern Station), a former train station that was renovated for the 1992 Olympic Games, now serves as the terminus for long-distance and regional bus services.
Barcelona has a metered taxi fleet governed by the Institut Metropolità del Taxi (Metropolitan Taxi Institute), composed of more than 10,000 cars. Most of the licenses are in the hands of self-employed drivers. With their black and yellow livery, Barcelona's taxis are easily spotted.
On March 22, 2007, Barcelona's City Council started the Bicing service, a bicycle service understood as a public transport. Once the user has their user card, they can take a bicycle from any of the 100 stations spread around the city and use it anywhere the urban area of the city, and then leave it at another station. The service has been a success, with 50,000 subscribed users in three months.
Roads and highways
Barcelona is belted by two Rondes, Ronda de Dalt (on the mountain side) and Ronda del Litoral (alongside the coast), two partially covered fast highways with several exits that allow to bypass the city.
The city's main arteries include Diagonal Avenue, which crosses the city in diagonal (hence the name); Meridiana Avenue which leads to Glòries and connects with Diagonal Avenue and Gran Via de les Corts Catalanes, which crosses the city from north to south, including the center of the city.