It also has an underground station (named Altona) which is served by the rapid transit trains of the Hamburg S-Bahn.

The building was finally demolished in the late 1970s during the construction of the City-S-Bahn despite protests; it was feared that the tunnelling would cause the structure to collapse.

There are two underground island platforms for the Hamburg S-Bahn rapid transit trains, accessible by stairs, escalators and lifts.

Regional services available from Altona include number RE 6/60 to Westerland (Sylt) and RB 71 to Itzehoe and Wrist.

[5] Several shops are located in the station building, along with emergency and information telephones, ticket machines, toilets, lockboxes and personnel.