Compare Short Haul (<500 km)

Train vs Flight: Heilbronn Hbf to Sion

🇩🇪 Heilbronn Hbf → 🇨🇭 Sion · 352 km

Verdict

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

For this short-haul route from Heilbronn Hbf 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 75 kg of CO2 compared to flying.

Comparison

Train
Flight
Journey time 3h 2m 25m
Door-to-door

incl. check-in / airport

3h 32m

+30 min at station

2h 55m

+2h 30min at airport

CO2 emissions

avg. estimate per passenger

14.4 kg 89.8 kg
Est. ticket price

rough estimate only

~€28 ~€42
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 75.4 kg CO2 — 84% less than flying

Train: 14.4 kg CO2 · Flight: 89.8 kg CO2 (41g/km train vs 255g/km flight, European averages incl. radiative forcing)

Train
14.4 kg
Flight
89.8 kg

Door-to-Door Breakdown

Train

Faster door-to-door
Check-in at station 30 min
Journey time 3h 2m
Total door-to-door 3h 32m

Flight

Airport overhead 2h 30 min
Flight time 25m
Total door-to-door 2h 55m

Train tickets for this route

Heilbronn Hbf → Sion · full route details

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Frequently Asked Questions

Is train or flight faster from Heilbronn Hbf to Sion?
Train is faster door-to-door from Heilbronn Hbf to Sion. The train takes 3h 32m door-to-door (including 3h 2m journey + 30 min station check-in), while flying takes 2h 55m (25m flight + 2h 30min airport overhead).
How much CO2 does the Heilbronn Hbf–Sion train vs flight produce?
For the Heilbronn Hbf to Sion route (352 km straight-line), the train produces approximately 14.4 kg of CO2 per passenger, while the flight produces approximately 89.8 kg. Taking the train saves 75.4 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 Heilbronn Hbf to Sion?
Door-to-door travel time from Heilbronn Hbf to Sion:
  • Train: 3h 32m total (3h 2m journey + 30 min station check-in)
  • Flight: 2h 55m total (25m flight + 2h 30min airport overhead for check-in, security, boarding, and taxi)
Is the Heilbronn Hbf to Sion train worth it vs flying?
For this short-haul route from Heilbronn Hbf 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 75 kg of CO2 compared to flying.
How far is Heilbronn Hbf from Sion?
The straight-line distance from Heilbronn Hbf to Sion is 352 km. The actual rail distance will be longer (typically ~1.3× the straight-line distance) due to track routing.

Stations

Other routes from Heilbronn Hbf

Data last updated: 2026-02-27