Compare Short Haul (<500 km)

Train vs Flight: Montpellier St-Roch to Sion

🇫🇷 Montpellier St-Roch → 🇨🇭 Sion · 400 km

Verdict

Train wins door-to-door on this short route — airport overhead makes flying impractical.

For this short-haul route from Montpellier St-Roch to Sion, train is the clear winner. Airport check-in, security, and boarding add over 2.5 hours to your journey. The train departs from the city centre and arrives directly in the heart of Sion, saving 86 kg of CO2 compared to flying.

Comparison

Train
Flight
Journey time 3h 25m 29m
Door-to-door

incl. check-in / airport

3h 55m

+30 min at station

2h 59m

+2h 30min at airport

CO2 emissions

avg. estimate per passenger

16.4 kg 102.0 kg
Est. ticket price

rough estimate only

~€32 ~€48
City centre arrival Central station Airport (outside city)

* Price and CO2 figures are rough average estimates. Actual values vary by booking class, date, operator, and energy mix. Journey times are based on existing route data or standard speed assumptions.

CO2 Savings

Save 85.6 kg CO2 — 84% less than flying

Train: 16.4 kg CO2 · Flight: 102.0 kg CO2 (41g/km train vs 255g/km flight, European averages incl. radiative forcing)

Train
16.4 kg
Flight
102.0 kg

Door-to-Door Breakdown

Train

Faster door-to-door
Check-in at station 30 min
Journey time 3h 25m
Total door-to-door 3h 55m

Flight

Airport overhead 2h 30 min
Flight time 29m
Total door-to-door 2h 59m

Train tickets for this route

Montpellier St-Roch → Sion · full route details

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Frequently Asked Questions

Is train or flight faster from Montpellier St-Roch to Sion?
Train is faster door-to-door from Montpellier St-Roch to Sion. The train takes 3h 55m door-to-door (including 3h 25m journey + 30 min station check-in), while flying takes 2h 59m (29m flight + 2h 30min airport overhead).
How much CO2 does the Montpellier St-Roch–Sion train vs flight produce?
For the Montpellier St-Roch to Sion route (400 km straight-line), the train produces approximately 16.4 kg of CO2 per passenger, while the flight produces approximately 102.0 kg. Taking the train saves 85.6 kg of CO2 — a 84% reduction. These are average estimates based on European averages (train: 41g CO2/km, flight: 255g CO2/km including radiative forcing).
What is the door-to-door travel time for train vs flight Montpellier St-Roch to Sion?
Door-to-door travel time from Montpellier St-Roch to Sion:
  • Train: 3h 55m total (3h 25m journey + 30 min station check-in)
  • Flight: 2h 59m total (29m flight + 2h 30min airport overhead for check-in, security, boarding, and taxi)
Is the Montpellier St-Roch to Sion train worth it vs flying?
For this short-haul route from Montpellier St-Roch to Sion, train is the clear winner. Airport check-in, security, and boarding add over 2.5 hours to your journey. The train departs from the city centre and arrives directly in the heart of Sion, saving 86 kg of CO2 compared to flying.
How far is Montpellier St-Roch from Sion?
The straight-line distance from Montpellier St-Roch to Sion is 400 km. The actual rail distance will be longer (typically ~1.3× the straight-line distance) due to track routing.

Stations

Other routes from Montpellier St-Roch

Data last updated: 2026-02-27