Compare Medium Haul

Train vs Flight: Nantes to Sion

Q: Is train or flight faster from Nantes to Sion?

Flight is faster from Nantes to Sion, taking 3h 19m door-to-door versus 6h 15m for the train. However, the train produces 84% less CO2.

Q: What is the door-to-door travel time for train vs flight Nantes to Sion?

Door-to-door travel time from Nantes to Sion: Train takes 6h 15m total (5h 45m journey + 30 min station check-in). Flight takes 3h 19m total (49m flight + 2.5 hours airport overhead for check-in, security, boarding, and taxi).

Q: How far is Nantes from Sion?

The straight-line distance from Nantes to Sion is 687 km (687 km). The actual rail distance will be longer due to track routing.

🇫🇷 Nantes → 🇨🇭 Sion · 687 km

Verdict

Flight is faster by 2h 56m door-to-door, but train produces 84% less CO2 — worth considering.

On this medium-haul route from Nantes to Sion, the flight is faster door-to-door, but the train is a greener alternative — saving 147 kg of CO2 per passenger. If your schedule allows extra travel time, the train offers a comfortable, eco-friendly journey.

Comparison

	Train	Flight ✓
Journey time	5h 45m	49m
Door-to-door incl. check-in / airport	6h 15m +30 min at station	3h 19m +2h 30min at airport
CO2 emissions avg. estimate per passenger	28.2 kg	175.2 kg
Est. ticket price rough estimate only	~€55	~€82
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 147.0 kg CO2 — 84% less than flying

Train: 28.2 kg CO2 · Flight: 175.2 kg CO2 (41g/km train vs 255g/km flight, European averages incl. radiative forcing)

Train

28.2 kg

Flight

175.2 kg

Door-to-Door Breakdown

Train

Check-in at station 30 min

Journey time 5h 45m

Total door-to-door 6h 15m

Flight

Faster door-to-door

Airport overhead 2h 30 min

Flight time 49m

Total door-to-door 3h 19m

Train tickets for this route

Nantes → Sion · full route details

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Frequently Asked Questions

Is train or flight faster from Nantes to Sion?

Flight is faster from Nantes to Sion, taking 3h 19m door-to-door versus 6h 15m for the train. However, the train produces 84% less CO2.

How much CO2 does the Nantes–Sion train vs flight produce?

For the Nantes to Sion route (687 km straight-line), the train produces approximately 28.2 kg of CO2 per passenger, while the flight produces approximately 175.2 kg. Taking the train saves 147.0 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 Nantes to Sion?

Door-to-door travel time from Nantes to Sion:

Train: 6h 15m total (5h 45m journey + 30 min station check-in)
Flight: 3h 19m total (49m flight + 2h 30min airport overhead for check-in, security, boarding, and taxi)

Is the Nantes to Sion train worth it vs flying?

How far is Nantes from Sion?

The straight-line distance from Nantes to Sion is 687 km. The actual rail distance will be longer (typically ~1.3× the straight-line distance) due to track routing.