Eurail Passes including Switzerland are valid on the entire route from St. Moritz to Zermatt.

In 2026, the Eurail Pass covers the train journey to Zermatt, but it does not cover the high-mountain excursions above the village. Specifically, you can use your Eurail Pass to travel for "free" (using a travel day) on the Matterhorn Gotthard Bahn from Brig or Visp directly into Zermatt station. This is a major benefit for pass holders. However, once you arrive in the car-free village of Zermatt, the iconic mountain railways—such as the Gornergrat Railway or the Matterhorn Glacier Paradise cable cars—are considered "private" tourist lines. These are not covered for free by Eurail, though pass holders typically receive a 25% to 50% discount on the ticket price. In contrast, the "Swiss Travel Pass" (a separate product) often offers slightly better coverage for these mountain lifts. For those doing the "Glacier Express" in 2026, the Eurail Pass covers the train itself, but you must pay a mandatory seat reservation fee, which can be quite expensive during the peak winter and summer seasons.