Jul 4, 2018 - 9:12 AM
Lucas's link allows you to find tickets from the Swiss border (Domodossola) to Milan. The Swiss Half Fare Card is not valid there so you need a regular ticket. All listed websites are safe and purchased tickets will be valid.
Additionally you need a discounted ticket from Wilderswil to Domodossola for Swiss Half Fare Card holders for CHF 29.80. You can buy that in Switzerland or online: www.myswissalps.com/tr aintickets/switzerland halffare/price.
Alternatively you can buy the ticket for the whole trip Wilderswil-Milan at a staffed train station in Switzerland, with the Swiss leg being discounted. As Lucas said this will probably be more expensive.
In either case you don't get off the train at the border, that would take too much time. You can arrange for tickets ahead of time.
Last modified on Jul 4, 2018 - 9:13 AM by Arno