Train from Cologne to Sion

🇩🇪 Cologne → 🇨🇭 Sion

Straight-line Distance

525 km

S (176.6°)

Rail Distance

~682 km

Estimated by rail

Travel Time

~2h 36m

High_Speed

CO2 Saved vs Flight

91.3%

121.7 kg less CO2

Environmental Comparison

Train

High_Speed

CO2 Emissions 11.6 kg

Flight

Economy class

CO2 Emissions 133.3 kg

Taking the train saves 121.7 kg CO2 (91.3% less emissions)

Route Information

Requires Transfer

Stations on This Route

🇩🇪

Origin

Cologne
🇨🇭

Destination

Sion

Journey Tips

DB ICE trains depart Cologne frequently for Basel, where SBB continues to Sion via Bern. The journey traverses Germany's Rhine corridor and the Swiss Mittelland before arriving in the dramatic Valais. Cologne Hbf is one of Europe's busiest and most impressive international rail hubs.

Scenic Highlight

The Middle Rhine Gorge between Koblenz and Bingen, a UNESCO World Heritage Site studded with medieval castles, dramatic cliffs, and terraced vineyards, is one of Germany's most celebrated and recognisable rail panoramas.

Booking Tip

Book DB ICE tickets via bahn.de and SBB connections via sbb.ch; a DB Europe or Rail Europe through-ticket simplifies the process, and booking 4-6 weeks ahead secures the best Sparpreis fares.

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 Cologne

🇨🇭 Sierre/Siders 519 km 🇮🇹 Milan 629 km 🇨🇭 Aigle 514 km 🇨🇭 Bex 522 km 🇨🇭 Altdorf 468 km

Frequently Asked Questions

The estimated train journey from Cologne to Sion takes approximately 2h 36m. This estimate is based on a rail distance of ~682 km using a high_speed service.
The estimated rail distance from Cologne to Sion is approximately 682 km (525 km straight-line). Rail routes are longer than straight-line distances because tracks follow terrain and connect intermediate cities.
Travelling by train from Cologne to Sion emits approximately 11.6 kg of CO2, compared to 133.3 kg by flight. Taking the train saves 121.7 kg of CO2 — a 91.3% reduction in emissions.
The route from Cologne 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 Cologne and Sion.

Train vs Flight comparison

Compare door-to-door time, CO2 and cost for Cologne to Sion

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Data last updated: 2026-02-27