This line hosts limited freight services plus excursion trains of the Dampfbahn-Verein Zürcher Oberland.

When the line was opened in 1912, SB built a passenger Station North of the Old town Center, called Sursee-Stadt.

The motorway connection Sursee called for the construction of a Northern Ringroad Ringstrasse Nord through the Bifang.

But it wasn't the time to build new secondary railways then and furthermore Triengen and Schöftland are situated in different cantons.

On 25 September 1971 regular passenger traffic of the ST ended and a new bus service Sursee–Triengen–Schöftland connected with the modernized WSB line.

[1] After the 1999 reform of railway law, SBB Cargo decided to bring freight cars to their destinations in open access.

A study about the feasibility of reinstating passenger traffic and a possible extension to Schöftland commissioned by the Sursee-Triengen company with ETH Zurich[2] was published in May 2009.

The municipality Triengen opposes passenger rail traffic, as access to settlements seems to be better by road transport.