Train from Clermont-Ferrand to Sion

🇫🇷 Clermont-Ferrand → 🇨🇭 Sion

Straight-line Distance

333 km

E (79.9°)

Rail Distance

~433 km

Estimated by rail

Travel Time

~1h 43m

High_Speed

CO2 Saved vs Flight

91.3%

77.2 kg less CO2

Environmental Comparison

Train

High_Speed

CO2 Emissions 7.4 kg

Flight

Economy class

CO2 Emissions 84.6 kg

Taking the train saves 77.2 kg CO2 (91.3% less emissions)

Route Information

Requires Transfer

Stations on This Route

🇫🇷

Origin

Clermont-Ferrand
🇨🇭

Destination

Sion

Journey Tips

Clermont-Ferrand connects to Sion via Lyon, with SNCF on the French side and SBB or TGV Lyria into Switzerland. The volcanic Auvergne landscape contrasts vividly with the alpine Valais. Allow a full day, as at least one change is required.

Scenic Highlight

The volcanic Auvergne landscape visible on departure, with its distinctive puy domes and dark basalt terrain, gives way progressively to the Rhône Valley and then the jagged limestone peaks of the Swiss Alps.

Booking Tip

Book via SNCF Connect for the Clermont-Lyon segment (often requiring a regional train connection) and onward via Lyria.com or sbb.ch; combining tickets usually yields the best overall fare.

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 Clermont-Ferrand

🇨🇭 Sierre/Siders 347 km 🇨🇭 Zürich HB 452 km 🇮🇹 Milan 476 km 🇨🇭 Neuchâtel 324 km 🇨🇭 Lausanne 284 km

Frequently Asked Questions

The estimated train journey from Clermont-Ferrand to Sion takes approximately 1h 43m. This estimate is based on a rail distance of ~433 km using a high_speed service.
The estimated rail distance from Clermont-Ferrand to Sion is approximately 433 km (333 km straight-line). Rail routes are longer than straight-line distances because tracks follow terrain and connect intermediate cities.
Travelling by train from Clermont-Ferrand to Sion emits approximately 7.4 kg of CO2, compared to 84.6 kg by flight. Taking the train saves 77.2 kg of CO2 — a 91.3% reduction in emissions.
The route from Clermont-Ferrand 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 Clermont-Ferrand and Sion.

Train vs Flight comparison

Compare door-to-door time, CO2 and cost for Clermont-Ferrand to Sion

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Data last updated: 2026-02-27