Both of these S-Bahn services run on metre gauge lines, and are operated by the Rhaetian Railway, which also runs the line from Chur to Arosa in similar fashion.

Upon the 2005 timetable change, the Chur – Landquart and Thusis – Chur regional lines on the Landquart–Thusis railway were converted into S-Bahn lines.

There are proposals to add to the Chur S-Bahn network the Ziegelbrücke – Sargans – Landquart – Chur regional line, which is operated by the SBB-CFF-FFS, and also to shorten its service intervals to a train every thirty minutes.

Additionally, this line is proposed to be extended to Ems Werk via SBB-CFF-FFS / RhB dual gauge track.

Media related to S-Bahn Chur at Wikimedia Commons