Rail corridor · Vienna → Paris

Vienna to Paris by train: connections, duration and CO₂ compared with flying

What actually runs between Vienna and Paris, how long it typically takes, and how rail compares with flying and driving in a modelled CO₂e balance — calculation included.

Rail ≈ 1,350 km · flight 1,035 km great-circle (VIE → CDG) · road 1,240 km

Model calculation · methodology v1.1 · not measured data

The connection

What runs on this corridor

Vienna–Paris generally involves connecting trains. Routes via Munich or Zurich depend on the travel date and available onward services. Compare the complete itinerary, including transfer time, in the operators’ journey planners.

The direct ÖBB Nightjet to Paris was discontinued with the December 2025 timetable change. A journey combining a night train with a daytime connection requires separate checking; this page is not evidence that a specific connection is available.

Connection information reviewed on 11 October 2026 using operator sources. Distances below describe a comparison scenario, not a current timetable or a bookable offer.

Operators: ÖBB Railjet · DB ICE · TGV · TGV Lyria
Typical duration: check date and connection
Changes: depends on the connection
Route: via Munich or via Zurich

Timetable sources:KlimaTicket Ö · validity map / Gültigkeitskarte DB · Nightjet network and Paris discontinuation ÖBB · journey planner

Train vs flight vs car

CO₂e per journey: one person or one car

Each mode uses its own activity distance: rail the route length, flying the great-circle distance between airports, driving the routed road distance. Ranges come from the published factor bands, not from measurement error.

Mode	Factor used	kg CO₂e	Range
Train	grid model, endpoint average × 0.09 kWh/pkm7.3 g/pkm × 1,350 km	9.8 kg	6.3–13.4 kg
Flight	128 g CO₂e/pkm, DESNZ 2026 short-haul with RF128 g/pkm × 1,035 km	132 kg	130–196 kg
Car (whole vehicle)	166 g CO₂e/vehicle-km, DESNZ 2026 average car166 g/veh-km × 1,240 km	206 kg	68–347 kg

123 kg CO₂e

Difference, rail vs flight

About 93% below the flight value in this model — per person, one way.

How this was calculated

Rail: the annual grid snapshot gives 110 g CO₂e/kWh for Austria and 52 g CO₂e/kWh for France. A cross-border leg averages its endpoint countries, so 81 g/kWh × 0.09 kWh per passenger-kilometre = 7.3 g CO₂e/pkm. Over 1,350 km of route that is 9.8 kg CO₂e per person. The range spans the two endpoint countries taken separately. Vienna–Munich ≈ 445 km plus Munich–Stuttgart–Strasbourg–Paris ≈ 905 km, rounded to 10 km.
Flight: UK DESNZ 2026 short-haul average passenger with radiative forcing, 128 g CO₂e/pkm (range 126–189), over the 1,035 km great-circle distance between the airport pair = 132 kg CO₂e per person. Great-circle distance is an approximation between airport coordinates, not the flown track, and it excludes getting to and from the airport.
Car: UK DESNZ 2026 average car, 166 g CO₂e per vehicle-kilometre (range 55–280), over the 1,240 km routed road distance = 206 kg CO₂e per vehicle. That is the whole vehicle: shared between two or four people, the per-person figure drops accordingly.
Cross-check: the static catalogue factor for national rail (31 g CO₂e/pkm) would give 42 kg over the same route. The grid model can sit well below it on low-carbon electricity. Rail figures cover electric intercity operation — diesel sections, actual occupancy and upstream energy are not modelled.
All values are model calculations from published factors under Farleda methodology v1.1, not measurements, and describe one-way travel. Rail and flight are per person; the car row is per vehicle.

The record

What the signed record for this route looks like

When a plan for this corridor is saved in Farleda, the result is a Trip Carbon Passport: a canonical payload with distance, modes, rounded leg summaries, traveller count and declared methodology/comparison versions, signed by the server with HMAC-SHA256. Anyone can check any passport publicly, without an account. A valid result shows the payload has not changed since Farleda signed it — it does not prove the journey physically happened, and it is not an offset or a certificate.

Public access depends on the API release. The verification page explains the current access to the service.

Check a passport →

Tickets and coverage

What is and is not covered

The KlimaTicket Ö covers participating Austrian services and specified foreign sections — it is valid within its applicable tariff area, including specified border stations and foreign sections; the German, Swiss and French legs each need their own ticket.
Reservation is compulsory on TGV and TGV Lyria services, so the French leg cannot be boarded on a walk-up basis.

Ticket rules change. Check the operators’ conditions and the KlimaTicket validity map linked below.

Questions

Frequently asked about this corridor

How long does the train from Vienna to Paris take?

Exact journey times depend on the date and direction. Check the linked operator journey planner; the overview above describes the reviewed connection.

Is there still a night train from Vienna to Paris?

Not a direct one. The Nightjet Vienna–Paris ended at the December 2025 timetable change after French funding stopped. A night-train/day-train combination via Zurich must be checked for the selected date.

How much CO₂ does the train save compared with flying?

In our model calculation roughly 123 kg CO₂e per person one way: about 9.8 kg by rail against about 132 kg by air. Both are modelled ranges from published factors, not measurements.

Where do I change trains?

Possible routes connect via Munich or Zurich. The number of changes depends on the date, onward train and construction work; use the complete itinerary in the operator planner.

Does the KlimaTicket cover the trip to Paris?

No. The KlimaTicket Ö is valid on the Austrian section within its applicable tariff area, including specified border stations and foreign sections. Germany, Switzerland and France each need a separate ticket.

How are the CO₂ figures on this page calculated?

Rail uses the endpoint-country average of the annual grid snapshot times 0.09 kWh per passenger-kilometre; flying uses the UK DESNZ 2026 short-haul factor of 128 g CO₂e/pkm with radiative forcing; the car row uses 166 g CO₂e per vehicle-kilometre. Every step is documented in the footnote below the table.

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Nearby corridors

All corridors Methodology, factors and limits

Vienna to Paris by train: connections, duration and CO₂ compared with flying

What runs on this corridor

CO₂e per journey: one person or one car

What the signed record for this route looks like

What is and is not covered

Frequently asked about this corridor

Plan Vienna → Paris rail-first

Compare another route

Vienna → Zurich

Vienna → Munich

Munich → Rome