Is it possible to travel from Montreux to Zurich a going part of the way on the Golden Pass train. How long would it take?
The entire Golden Pass route goes from Montreux to Luzern, which takes about 4.5 hours and requires three changes along the way. From Luzern to Zurich is only any hour away via a regular intercity train.
If you only want to do part of the journey you could depart the Golden Pass at Spiez and take a direct train from there to Zurich (some departures require achange in Bern). But the most scenic portion of the Goldenpass is from Spiez-Interlaken-Luzern.
You can check schedules at the Swiss Rail site: rail.ch
Yep, it's that easy, with trains running Luzern-Zurich twice per hour. You may also find the Golden Pass site to be interesting.
But the Golden Pass is just a train with slightly bigger windows that travels along the same tracks as all of the other trains traveling the same route. If you don't want to wait on the Golden Pass then just jump on any train going the same destination. Oh yes, 1 more difference in the trains is that the Golden Pass has "Golden Pass" written on the side of the train. In other words - negligible differences.
It is possible.
You can search on www.ffs.ch trains between Montreux and Zürich, with additonal option of travelling via Zweisimmen and Sarnen. That way you'll see options routed via what was branded "Golden Pass".
It takes slight less than 6.5 hours to travel that way.
The "official" Golden Pass trains can be quite an adventure. Check out the "classic" Golden Pass trains. Between Montreux and Zweissman they use restored vintage Pullman coaches. The first class carriages are well worth the splurge!