Compare Medium Haul

Train vs Flight: Carnac to Sierre/Siders

Q: Is train or flight faster from Carnac to Sierre/Siders?

Flight is faster from Carnac to Sierre/Siders, taking 3h 28m door-to-door versus 7h 19m for the train. However, the train produces 84% less CO2.

Q: What is the door-to-door travel time for train vs flight Carnac to Sierre/Siders?

Door-to-door travel time from Carnac to Sierre/Siders: Train takes 7h 19m total (6h 49m journey + 30 min station check-in). Flight takes 3h 28m total (58m flight + 2.5 hours airport overhead for check-in, security, boarding, and taxi).

Q: How far is Carnac from Sierre/Siders?

The straight-line distance from Carnac to Sierre/Siders is 818 km (818 km). The actual rail distance will be longer due to track routing.

🇫🇷 Carnac → 🇨🇭 Sierre/Siders · 818 km

Verdict

Flight is faster by 3h 51m door-to-door, but train produces 84% less CO2 — worth considering.

On this medium-haul route from Carnac to Sierre/Siders, the flight is faster door-to-door, but the train is a greener alternative — saving 175 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	6h 49m	58m
Door-to-door incl. check-in / airport	7h 19m +30 min at station	3h 28m +2h 30min at airport
CO2 emissions avg. estimate per passenger	33.5 kg	208.6 kg
Est. ticket price rough estimate only	~€65	~€98
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 175.1 kg CO2 — 84% less than flying

Train: 33.5 kg CO2 · Flight: 208.6 kg CO2 (41g/km train vs 255g/km flight, European averages incl. radiative forcing)

Train

33.5 kg

Flight

208.6 kg

Door-to-Door Breakdown

Train

Check-in at station 30 min

Journey time 6h 49m

Total door-to-door 7h 19m

Flight

Faster door-to-door

Airport overhead 2h 30 min

Flight time 58m

Total door-to-door 3h 28m

Train tickets for this route

Carnac → Sierre/Siders · full route details

View route details →

Frequently Asked Questions

Is train or flight faster from Carnac to Sierre/Siders?

Flight is faster from Carnac to Sierre/Siders, taking 3h 28m door-to-door versus 7h 19m for the train. However, the train produces 84% less CO2.

How much CO2 does the Carnac–Sierre/Siders train vs flight produce?

For the Carnac to Sierre/Siders route (818 km straight-line), the train produces approximately 33.5 kg of CO2 per passenger, while the flight produces approximately 208.6 kg. Taking the train saves 175.1 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 Carnac to Sierre/Siders?

Door-to-door travel time from Carnac to Sierre/Siders:

Train: 7h 19m total (6h 49m journey + 30 min station check-in)
Flight: 3h 28m total (58m flight + 2h 30min airport overhead for check-in, security, boarding, and taxi)

Is the Carnac to Sierre/Siders train worth it vs flying?

How far is Carnac from Sierre/Siders?

The straight-line distance from Carnac to Sierre/Siders is 818 km. The actual rail distance will be longer (typically ~1.3× the straight-line distance) due to track routing.