72625 posts
No the Bernina Express runs Chur to Tirano there is no stop in St. Moritz (There is a Bernina Express train that runs from St. Moritz to Tirano as well).
Furthermore, please note that it is nearly a 4 hour train ride one-way from Lauterbrunnen to Chur….so this is a very long day of train travel just to get to the area. If you were staying in Chur one night it would be more feasible for you.
You can find all train schedules here.
Lucas
15484 posts
Hi Harrysimi,
Even if you would take a regular train only as far as St. Moritz you would still miss out on the southern leg of the Bernina line to Tirano, which is very nice. Theoretically you can depart from Lauterbrunnen at 6:00 AM and travel by regular trains via Chur and Tirano to Milan and arrive 5:40 PM. Then from there back to Lauterbrunnen takes another 4 hours. All of this without any breaks and assuming no delays! I would not recommend it and find an activity closer to Lauterbrunnen.