Since 2022 the station also serves as the eastern terminus of the Limmattal light rail line.

The Zürich to Zug via Affoltern am Albis line opened in 1864, making Altstetten into a junction station.

In 1907, the Swiss Federal Railways, who had taken over both lines, opened a workshop near the station.

[8][9] Since December 2022, the Limmattal light rail line (route 20) terminates at Bahnhof Altstetten station.

This service, operated by AVA, runs through the Limmat Valley region and connects to the Zürich tram network at Farbhof, just to the west of Altstetten station.