Train from Grenoble to Sion

🇫🇷 Grenoble → 🇨🇭 Sion

Straight-line Distance

172 km

NE (47.4°)

Rail Distance

~224 km

Estimated by rail

Travel Time

~58m

High_Speed

CO2 Saved vs Flight

91.3%

40.0 kg less CO2

Environmental Comparison

Train

High_Speed

CO2 Emissions 3.8 kg

Flight

Economy class

CO2 Emissions 43.8 kg

Taking the train saves 40.0 kg CO2 (91.3% less emissions)

Route Information

Requires Transfer

Stations on This Route

🇫🇷

Origin

Grenoble
🇨🇭

Destination

Sion

Journey Tips

Grenoble connects to Sion via Lyon or Geneva, with a change onto SBB for the Swiss segment. SNCF TER covers the Grenoble-Lyon leg and TGV Lyria or SBB the onward journey. Both cities are surrounded by spectacular Alpine scenery, making this a rewarding mountain-to-mountain route.

Scenic Highlight

Departure from Grenoble through the Vercors and Chartreuse massifs, with limestone cliffs rising immediately above the city, begins a journey that transitions through three distinct Alpine landscapes before reaching Sion.

Booking Tip

Book TER tickets from Grenoble to Lyon via SNCF Connect and onward tickets via Lyria.com or sbb.ch; allow adequate connection time at Lyon Part-Dieu as TGV departure platforms can be busy.

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 Grenoble

🇨🇭 Sierre/Siders 187 km 🇨🇭 Zürich HB 326 km 🇨🇭 Neuchâtel 222 km 🇮🇹 Milan 275 km 🇨🇭 Lausanne 163 km

Frequently Asked Questions

The estimated train journey from Grenoble to Sion takes approximately 58m. This estimate is based on a rail distance of ~224 km using a high_speed service.
The estimated rail distance from Grenoble to Sion is approximately 224 km (172 km straight-line). Rail routes are longer than straight-line distances because tracks follow terrain and connect intermediate cities.
Travelling by train from Grenoble to Sion emits approximately 3.8 kg of CO2, compared to 43.8 kg by flight. Taking the train saves 40.0 kg of CO2 — a 91.3% reduction in emissions.
The route from Grenoble 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 Grenoble and Sion.

Train vs Flight comparison

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

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Data last updated: 2026-02-27