Yes, the Aerobús operates at night. It operates 24 hours a day all year round, even on public holidays, from both the T1 arrival terminal and the T2 terminal to Barcelona and from the center of Barcelona to the airport. Please note, however, that the frequency of night transfer buses varies slightly depending on the route. You will find more details a little further up on this page in the section > Aerobus timetable.
There are other means of transportation at night such as the night bus lines N16 (A2) and N17 (A1) that connect Ronda Universitat- Pl. Catalunya with the airport. More information on our Barcelona Airport pages.