Mar 29, 2016 - 4:40 PM
in reply to kdkwood
You're welcome! You can best enter "Tirano to Bern" in the timetable I linked to in my previous post. Then, when it displays the options, enter "Chur" in the via-box. That will get you a list with all options for the route you have in mind, with a change in either St. Moritz or Pontresina and Samedan.
If you have two days, you could spend the night in Chur and take the Glacier Express to Brig the next day, and change for Bern there.
Before you book trains, make sure to have a list of all your travel plans in Switzerland and check if a pass is the better option. By the way, "booking trains" is only relevant to the few special tourist trains like the Bernina Express. That's when you book a seat. People do not book all the other trains in advance. You either travel with a ticket from A to B for the day (valid in any train on the A to B route), or you travel with pass so you don't need a ticket at all. A pass is more economical in most cases.