The Snow’n’Rail scheme from Swiss Railways provides a 20% discount on the combined public transport and lift passes for a whole host of resorts in Switzerland. Additionally there are often even better offers available, and January sees some really brilliant ones.
Airolo is a pretty little village, famous as the home resort of Lara Gut, with enough slopes to keep most skiers and snowboarders happy for a day trip. They will be particularly happy with the massive 50% discount offered in January. You can get to Airolo from many locations, including Basel and Zurich, without changing trains – and there are not many resorts you can say that of. Plus it is the largest Italian-speaking resort in Switzerland.
If you do take the train to Airolo you can either take the courtesy bus from the station or walk to the bottom station – head left out of the station.
Other noteworthy deals are the 30% discount for Distentis (here), a favourite for freeriders, Meiringen-Hasliberg (here), convenient for Basel and Berne, Sattel (here), convenient for Zug and Lucerne, and Braunwald (here), a direct train trip from Zurich.