Short answer: From early July 2027, SBB, SNCF Voyageurs and SNCB will trial a new Brussels–Basel TGV by extending the existing Brussels–Strasbourg TGV INOUI service deep into Switzerland. The pilot runs one return trip on Fridays, Saturdays and Sundays: leaving Brussels-Midi around 07:00 and reaching Basel SBB about 12:30, with the return departing Basel near 14:00 and arriving in Brussels around 19:00. Tickets are expected to go on sale in spring 2027.
Europe's map of cross-border high-speed rail keeps filling in, and the latest addition connects three small but dynamic markets. Announced by Swiss railway SBB on 12 June 2026, the new Brussels–Basel TGV is a market trial that links Belgium, France and Switzerland with a single direct train — and, thanks to a connection in Lille, opens an all-rail path between Switzerland and London. Here is exactly what is planned, when it starts, and how to think about booking it.
What the Brussels–Basel TGV will offer
The service is not a brand-new train from scratch. Instead, the operators are extending the current "Brussels–France" TGV INOUI, jointly run by SNCF Voyageurs and SNCB, so that it continues past Strasbourg all the way to Basel SBB in partnership with SBB. The goal, in the operators' words, is to strengthen links between travellers in Switzerland, France and Belgium with a practical weekend rhythm.
There is a strategic angle, too. From Basel, Swiss travellers will be able to reach London via a connection in Lille, or continue on to the Netherlands from Brussels — both positioned as attractive rail alternatives to flying. One caveat the operators flag clearly: under the planned timetable, it will not be possible to connect at Lille in the other direction, from London toward Switzerland.
Route and stops
From early July 2027, the Brussels–Basel TGV INOUI will use the same intermediate stops as today's Brussels–Strasbourg service. Departing Brussels-Midi, the train calls at:
- Lille-Europe (the interchange for Eurostar to London)
- Charles de Gaulle Airport TGV
- Champagne-Ardenne TGV
- Meuse TGV
- Lorraine TGV
- Strasbourg-Ville
- Basel SBB
That stop pattern keeps the train plugged into France's high-speed network while adding a genuinely new through-link from the Belgian capital to the Swiss border city.
Timetable and frequency
The trial is deliberately weekend-focused. Expect one return service on Fridays, Saturdays and Sundays:
- Outbound: depart Brussels around 07:00, arrive Basel SBB about 12:30.
- Return: depart Basel around 14:00, arrive Brussels about 19:00.
- Onward to London: passengers changing at Lille-Europe can expect to reach London around 20:00 UK time.
Why a Brussels–Basel TGV matters now
Two things make this more than a niche timetable tweak. First, it stitches together a corridor that today usually requires a change of train in Strasbourg or Paris. A single weekend service is exactly the kind of low-friction option that nudges short-haul flyers onto rail — Basel, after all, sits at the meeting point of Switzerland, France and Germany, and is a natural gateway for weekend trips in either direction.
Second, it reflects how Europe's operators are now collaborating across borders rather than guarding their own networks. A trial jointly run by SBB, SNCF Voyageurs and SNCB is a test of demand: if the Friday-to-Sunday trains fill up, the case for more frequencies — or weekday service — gets stronger. It fits the same wave of new links we've tracked elsewhere, from the Brussels–Milan night train to the fresh competition arriving through the Channel Tunnel.
For travellers, the headline benefit is simple: a scenic, low-carbon way to move between northern Europe and the Swiss border without booking three separate tickets or sprinting between platforms. The TGV INOUI rolling stock means comfortable high-speed running across France, operated by SNCF on the French legs.
How to plan and book the Brussels–Basel TGV
Tickets are expected to go on sale in spring 2027, ahead of the early-July launch. Until then, nothing is bookable, so the practical move is to plan around the shape of the service rather than firm fares.
A few pointers for when booking opens:
- Book early for weekends. With just one return per day on three days a week, popular summer Saturdays will be the first to sell out.
- Mind the London connection. It works toward London via Lille-Europe, but not back toward Switzerland — plan the return leg accordingly.
- Compare before you commit. A direct TGV is appealing, but on some dates a mix of operators or a different routing can be cheaper or faster. You can line up trains, buses, carpooling and flights side by side when you search your route on Gopaxo, and check the frequently asked questions if you're new to cross-border rail tickets.
If the weekend-only window doesn't fit your dates, the existing Brussels– Strasbourg TGV INOUI and onward Swiss connections remain the fallback — just with a change of train at Strasbourg or Basel.
In short
- A new Brussels–Basel TGV will be trialled from early July 2027 by SBB, SNCF Voyageurs and SNCB.
- It extends the existing Brussels–Strasbourg TGV INOUI through to Basel SBB.
- Service runs one return trip on Fridays, Saturdays and Sundays.
- Brussels depart ~07:00, Basel arrive ~12:30; return Basel ~14:00, Brussels arrive ~19:00.
- Stops include Lille-Europe, Charles de Gaulle Airport TGV, Champagne-Ardenne, Meuse, Lorraine and Strasbourg-Ville.
- A connection at Lille-Europe allows onward travel to London (~20:00 UK time); the reverse London→Switzerland connection is not possible under the planned timetable.
- Tickets go on sale in spring 2027.
Frequently asked questions
When does the Brussels–Basel TGV start?
The trial service is planned to begin in early July 2027. It was announced by SBB on 12 June 2026, alongside SNCF Voyageurs and SNCB.
Which days does the Brussels–Basel train run?
The pilot offers one return journey on Fridays, Saturdays and Sundays — a weekend-focused schedule rather than daily service.
How long does the Brussels to Basel train take?
Based on the planned timetable, the outbound train leaves Brussels around 07:00 and reaches Basel SBB about 12:30, so roughly five and a half hours end to end.
Can I travel from Switzerland to London on this train?
Yes — by changing at Lille-Europe, where you can connect onward to London, arriving around 20:00 UK time. However, the operators note that the reverse direction (London to Switzerland) is not possible to connect at Lille under the current plan.
When can I book tickets for the Brussels–Basel TGV?
Tickets are expected to go on sale in spring 2027, ahead of the early-July launch. Until then, you can compare existing Brussels–Strasbourg and onward Swiss options when you search on Gopaxo.
Thinking of a weekend between Belgium and Switzerland? Bookmark the route, and when fares open in spring 2027, compare it on Gopaxo before you buy.
