The S6 was activated on 12 December 2004, and operated initially between Novara and
Milano Porta Vittoria. With the change of timetable on 15 June 2008, the line was extended from Milano Porta Vittoria to
Milano Rogoredo, where there is interchange with regional trains and long-distance services to and from Genoa, Bologna and Mantua. Coinciding with another timetable change on 13 December 2009, the Porta Vittoria to Rogoredo section was closed, but the southern end of the route was extended in that section's place, from Porta Vittoria to
Pioltello-Limito (and during
rush hour to Treviglio). == Stations ==