→Sargans — Trübbach (via eastern loop)
===Sargans — Trübbach (via eastern loop)===
[880, 900] (ERA 69B2, ''25C2'')
Through trains between the Ziegelbrücke and Buchs SG lines (mainly ''EC'' trains between Zürich and Innsbruck) use this route to avoid reversal at Sargans. Other trains (principally between the Chur and Buchs SG lines) use the western loop.