Train from St-Louis to Sion
🇫🇷 St-Louis → 🇨🇭 Sion
Straight-line Distance
152 km
S (185.7°)
Rail Distance
~198 km
Estimated by rail
Travel Time
~52m
High_Speed
CO2 Saved vs Flight
91.3%
35.3 kg less CO2
Environmental Comparison
Train
High_Speed
CO2 Emissions
3.4 kg
Flight
Economy class
CO2 Emissions
38.7 kg
Taking the train saves 35.3 kg CO2 (91.3% less emissions)
Route Information
Requires Transfer
Stations on This Route
Continue Your Journey
Frequently Asked Questions
The estimated train journey from St-Louis to Sion takes approximately 52m. This estimate is based on a rail distance of ~198 km using a high_speed service.
The estimated rail distance from St-Louis to Sion is approximately 198 km (152 km straight-line). Rail routes are longer than straight-line distances because tracks follow terrain and connect intermediate cities.
Travelling by train from St-Louis to Sion emits approximately 3.4 kg of CO2, compared to 38.7 kg by flight. Taking the train saves 35.3 kg of CO2 — a 91.3% reduction in emissions.
The route from St-Louis 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 St-Louis and Sion.
Train vs Flight comparison
Compare door-to-door time, CO2 and cost for St-Louis to Sion
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Data last updated: 2026-02-27