Compare Medium Haul

Train vs Flight: Porto Campanhã to Sion

🇵🇹 Porto Campanhã → 🇨🇭 Sion · 1,398 km

Verdict

Flight is faster by 7h 52m door-to-door, but train produces 84% less CO2 — worth considering.

On this medium-haul route from Porto Campanhã to Sion, the flight is faster door-to-door, but the train is a greener alternative — saving 299 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 11h 31m 1h 39m
Door-to-door

incl. check-in / airport

12h 1m

+30 min at station

4h 9m

+2h 30min at airport

CO2 emissions

avg. estimate per passenger

57.3 kg 356.5 kg
Est. ticket price

rough estimate only

~€112 ~€168
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 299.2 kg CO2 — 84% less than flying

Train: 57.3 kg CO2 · Flight: 356.5 kg CO2 (41g/km train vs 255g/km flight, European averages incl. radiative forcing)

Train
57.3 kg
Flight
356.5 kg

Door-to-Door Breakdown

Train

Check-in at station 30 min
Journey time 11h 31m
Total door-to-door 12h 1m

Flight

Faster door-to-door
Airport overhead 2h 30 min
Flight time 1h 39m
Total door-to-door 4h 9m

Train tickets for this route

Porto Campanhã → Sion · full route details

View route details →

Frequently Asked Questions

Is train or flight faster from Porto Campanhã to Sion?
Flight is faster from Porto Campanhã to Sion, taking 4h 9m door-to-door versus 12h 1m for the train. However, the train produces 84% less CO2.
How much CO2 does the Porto Campanhã–Sion train vs flight produce?
For the Porto Campanhã to Sion route (1398 km straight-line), the train produces approximately 57.3 kg of CO2 per passenger, while the flight produces approximately 356.5 kg. Taking the train saves 299.2 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 Porto Campanhã to Sion?
Door-to-door travel time from Porto Campanhã to Sion:
  • Train: 12h 1m total (11h 31m journey + 30 min station check-in)
  • Flight: 4h 9m total (1h 39m flight + 2h 30min airport overhead for check-in, security, boarding, and taxi)
Is the Porto Campanhã to Sion train worth it vs flying?
On this medium-haul route from Porto Campanhã to Sion, the flight is faster door-to-door, but the train is a greener alternative — saving 299 kg of CO2 per passenger. If your schedule allows extra travel time, the train offers a comfortable, eco-friendly journey.
How far is Porto Campanhã from Sion?
The straight-line distance from Porto Campanhã to Sion is 1,398 km. The actual rail distance will be longer (typically ~1.3× the straight-line distance) due to track routing.

Stations

Other routes from Porto Campanhã

Data last updated: 2026-02-27