Swiss Mountain Pass Opening Dates 2026: Road Status Checks

The facts below show confirmed 2026 reopening milestones. They do not show today's road status; check TCS before driving.

There is no single national opening day for Swiss mountain passes. Each pass reopens only after local authorities finish snow clearance, assess avalanche risk, and judge the road safe for normal traffic. That is why two nearby passes can move on different timelines in the same spring.

The most common planning mistake is treating a historical average as if it were an official opening date. Historical patterns are useful only as a rough guide. They help you understand whether a route is a likely late-May option or more of a June road, but they do not replace the current road status published by the pass portals.

For real-world trip planning, use a two-step check. First, use the TCS pass portal on the morning you expect to drive. Second, cross-check Alpen-paesse for pass-specific warnings, predicted reopening notes, and seasonal restrictions. That takes a few minutes and is much more reliable than reading an old blog table.

If you want the broadest choice of open roads for a once-in-a-lifetime road trip, late June through September remains the safest planning window. Spring and autumn can still be excellent, but they demand fallback routes and more flexibility. For October, use our same-day pass decision guide; once snow is possible, start with the Alps winter-driving rules.

Closing works the same way as opening, in reverse: there is no published closing date. Uri, Valais and Bern agree the winter closure between them once snow has settled and clearing the road stops being worthwhile, then announce it at short notice, sometimes on the morning it takes effect. In recent years that has fallen in late October or the first half of November — Uri closed the Furka and the Susten on 27 October 2025 — and a single early storm can end the season with a day's notice.

Switzerland Tourism publishes the Furka's driving season as June to October, which is a fair summary for Furka, Grimsel and Susten together. Treat it as a planning shape, not a guarantee: an October crossing is realistic, a November one is a gamble, and either way the only answer that counts on the day is the TCS pass portal. If you are booking an autumn trip around one of these roads, build the itinerary so it still works when the pass is shut.

The fallbacks are the ones listed in section 4 below. The year-round passes are cleared through the winter — which means they are maintained, not that weather can never shut them — the Gotthard road tunnel runs underneath the closed Gotthard Pass, and the car-carrying train through the Furka base tunnel between Realp and Oberwald runs all year. Once snow is on the ground the equipment rules change too, so read the Swiss winter driving rules before you set off.

For shoulder-season and winter road trips, the most useful fact is Alpen-paesse's current year-round list: Bernina, Brünig, Julier, Lukmanier, Maloja, Ofenpass, Simplon and Ibergeregg. Those are the roads to build fallback routing around when your first-choice high pass is still closed.

That year-round label does not mean weather can never disrupt them. Snow, ice, short closures and chain requirements can still appear during heavy conditions. What it does mean is that these passes are normally maintained as all-season routes and are far more realistic spring and autumn options than Furka, Grimsel or Susten.

For most foreign road trippers, Bernina, Julier and Simplon are the most practical names to remember. Bernina and Julier help when you are moving around Graubünden and the Engadin. Simplon is a dependable Valais-to-Italy corridor. Brünig is especially useful when you need a low-drama connection around central Switzerland. For a scenic route that is maintained in winter, see the Bernina Pass drive; our St. Moritz stay guide helps choose the Engadin base and parking.

Furka, Grimsel, Susten and Gotthard are the classic central-Switzerland road-trip cluster, but they should always be treated as road-status roads. They are close enough to tempt travelers into booking ambitious loops too early in the year, yet each one can reopen on its own schedule.

In 2026 Gotthard reopened on May 8, Furka on May 29 and Susten on June 12 (all announced by Kanton Uri); the Grimsel also reopened on May 29, as TCS and Swiss media reported that day, although no canton has published that date. Even so, treat them as road-status roads — early- and late-season snow can still trigger short-notice closures, so check the official portals on your actual drive day.

• Base yourself in Andermatt if you want east-side access to Gotthard and easy onward links to Uri and Graubünden.
• Base yourself in Meiringen or Innertkirchen if you want quick west-side access for Grimsel and the Bernese Oberland.
• For a first Swiss pass trip, late June to September is the simplest full-loop window.
• In May and early June, build your itinerary around what is actually open that week, not what you hope will open next.

Graubünden is the region where live checking pays off most, because the passes do not all move together. Flüela reopened early (April 21, 2026), weeks ahead of the central-Switzerland cluster. That is a useful reminder that eastern Switzerland can deliver good drive options earlier than travelers expect.

For route-building, separate the region into two groups. Year-round fallbacks include Bernina, Julier, Maloja and Ofenpass. Seasonal roads that still need active checking include Albula, Flüela, Splügen, San Bernardino and Oberalp.

If you are planning an Engadin or Davos-based road trip, this is one of the best regions to stay flexible. Check the morning status, pick the best combination that is genuinely open, and treat any extra seasonal reopening as a bonus rather than the foundation of the day.

The best Swiss pass planning workflow is practical and repeatable:

1. Check the TCS pass portal for the current open/closed status on your route day.
2. Cross-check Alpen-paesse for local warnings, forecast reopening notes and side-specific details.
3. Keep one backup plan built around a year-round pass, tunnel or car-train.
4. Fuel up in valley towns before climbing because pass-top fuel is rare or nonexistent.
5. Leave enough time for weather, photos and slow traffic instead of stacking too many passes into one day.

If you follow that workflow, the exact opening date of any one pass matters much less. You stay flexible, avoid disappointment and still end up with a strong driving day.