Train from Brussels to Sion

🇧🇪 Brussels → 🇨🇭 Sion

Straight-line Distance

559 km

SSE (155.4°)

Rail Distance

~727 km

Estimated by rail

Travel Time

~2h 46m

High_Speed

CO2 Saved vs Flight

91.3%

129.7 kg less CO2

Environmental Comparison

Train

High_Speed

CO2 Emissions 12.4 kg

Flight

Economy class

CO2 Emissions 142.0 kg

Taking the train saves 129.7 kg CO2 (91.3% less emissions)

Route Information

Requires Transfer

Stations on This Route

🇧🇪

Origin

Brussels

🇨🇭

Destination

Sion

Journey Tips

This Belgium-Switzerland journey links Brussels with the Valais via TGV Lyria or Eurostar combined with Swiss connections, routing through Paris or Bern. At least one change is required and the trip takes most of a day. Brussels-Midi is Belgium's main international rail hub.

Scenic Highlight

The dramatic shift from the flat Belgian and French plains to the Alpine grandeur of the Valais makes this a journey of remarkable contrasts, culminating in the vine-terraced slopes surrounding Sion.

Booking Tip

Book via Eurostar or Thalys.com for the Belgian-French segment and SBB.ch or Lyria.com for the Swiss portion; through-ticketing via Rail Europe can simplify multi-segment bookings.

Amsterdam to Brussels by Thalys/Eurostar

The Golden Triangle: London, Paris & Brussels by Train

1-Week Interrail Itinerary: Best of Western Europe

Continue Your Journey

Continue from Sion

🇨🇭 Sierre/Siders 15 km 🇨🇭 Disentis/Muster 126 km 🇨🇭 Andermatt 105 km 🇨🇭 Altdorf 121 km 🇨🇭 Bellinzona 129 km

Also from Brussels

🇨🇭 Sierre/Siders 557 km 🇨🇭 Zürich HB 491 km 🇮🇹 Milan 695 km 🇨🇭 Neuchâtel 467 km 🇨🇭 Lausanne 509 km

Frequently Asked Questions

The estimated train journey from Brussels to Sion takes approximately 2h 46m. This estimate is based on a rail distance of ~727 km using a high_speed service.

The estimated rail distance from Brussels to Sion is approximately 727 km (559 km straight-line). Rail routes are longer than straight-line distances because tracks follow terrain and connect intermediate cities.

Travelling by train from Brussels to Sion emits approximately 12.4 kg of CO2, compared to 142.0 kg by flight. Taking the train saves 129.7 kg of CO2 — a 91.3% reduction in emissions.

The route from Brussels to Sion typically requires at least one transfer. Check operator timetables for the most direct connection available.

Check regional and national rail operator websites for services between Brussels and Sion.

Train vs Flight comparison

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Data last updated: 2026-02-27