It is the second airport in Spain after the Madrid Airport and has four terminals: T2A, T2B, T2C and the recently opened T1 (there is a free shuttle, called Bustransit, which links T1 with the other terminals).
Barcelona Airport is connected to the center of the city through buses and trains.Buses:
Line A1 connects the T1 with Plaza Espanya and Plaza Catalunya. Route, fares and schedules line A1
Line A2 connects the T2 with Plaza Espanya and Plaza Catalunya. Route, fares and schedules line A2
Line 2 Nord of Cercanías Renfe. Information Line C2 Nord