Sep 13, 2016 - 12:26 PM
Hi Buka45, welcome to myswissalps.com!
The trains run all year round, and the bus usually starts running late March. There is no schedule for next year yet. I expect it to be available from mid October. Schedules can be found through the Swiss timetable or the link under "More on other websites" on our Bernina Express page.
By the way, note the names: Bernina Express, Tirano.