Tickets and booking
Seat Reservations
A reservation secures a seat or sleeping place. It may be compulsory, optional or included with a ticket. With Interrail, the pass is still required.
Includes: Seat reservation, Compulsory reservation, Optional reservation, Passholder reservation
Also known as: seat reservation, compulsory reservation, mandatory reservation, optional reservation, passholder reservation
A seat reservation secures a seat or sleeping place on a specific passenger service. It can be a separate booking alongside a ticket or rail pass, but a commercial ticket may include the reserved seat. The label matters because it can change whether you may board, which document you need, and whether you have a reserved place.
Compulsory and optional reservations
A compulsory, or mandatory, reservation is required for the service concerned. If you are travelling with a pass, the pass alone is not enough when the service requires a reservation. An optional reservation may be added when you want a reserved place, but the service does not require one under its own rules.
Under Interrail Pass conditions effective from 10 September 2026, most high-speed trains and sleeping accommodation on all night trains are advance-booking cases. Optional reservations are not required, and Rail Planner shows the status for a specific service. These are Interrail Pass rules for participating services, not a universal rule for every European train.
What a passholder reservation means
A passholder reservation pairs a reservation with the corresponding valid pass. It does not replace the pass or create a separate right to travel. With an Interrail Pass, a reservation by itself is not a valid ticket and must be presented with the compliant Pass. Passholder places can also be limited on some services.
Carry the reservation and the pass together. A reservation for a different train, an expired pass or a reservation without the required pass does not solve the underlying ticket requirement.
Fees and seats included with a ticket
With Interrail, the reservation purchase is separate from the Pass purchase. The reservation price varies with the train, service, availability, timing, participating company and distributor, and the booking also carries a fixed, non-refundable fee per traveller and reservation plus any delivery cost. There is no single European reservation fee.
On DB long-distance services in Germany, an individual reservation cost €5.50 in second class and €6.90 in first class on 11 September 2026 when the ticket was not bought at the same time. A flexible-fare first-class ticket includes a reservation. A German Rail Pass does not need a reservation within Germany, while some international connections and night trains do require one. These are DB products and services, not a general rule for rail travel.
A different product rule applies to SNCF Voyageurs' TGV INOUI weekly and monthly Pass in France. Under terms updated 1 April 2026, the reservation is compulsory, up to two reservations per day are allowed and the price is €0 when the pass is valid on the travel date. Both the pass and reservation are required during onboard inspection. This is a TGV INOUI Pass rule in France, not a rule for every SNCF service.
On Eurostar Continental Europe services, a reservation is required and the commercial ticket price includes transport and a reserved seat. A ticket can therefore contain a reservation, while a passholder reservation can remain a separate item.
Ticket versus reservation
In EU passenger-rights terminology, a ticket is evidence that a transport contract was concluded. A reservation is an authorisation for transport subject to confirmed personalised arrangements. In everyday booking terms, a valid ticket or valid pass with any required reservation establishes the right to travel, while the reservation records the place or accommodation attached to a particular service.
A document labelled reservation is not necessarily enough to board. The Interrail reservation-alone rule applies to its Pass conditions, not to every operator's ticket design. Before travelling, identify whether you have a complete commercial ticket, a valid pass with its required reservation, or only a reservation. The operator's rules for that service decide whether the reservation is compulsory, optional or already included in the ticket.
Related glossary entries cover travel-day and pass validity, booking windows, ticket flexibility and overnight accommodation.
Frequently asked questions
What is a seat reservation on a train?
A seat reservation ties a seat or sleeping place to one particular passenger service. It can be separate from the ticket or pass, or included in the price of a commercial ticket.
What is the difference between a compulsory and optional reservation?
A compulsory reservation is required for the service, while an optional reservation may be added but is not required under that service's rules. For Interrail, Rail Planner shows the status for a specific service.
Is a seat reservation the same as a train ticket?
No. A ticket is evidence of a transport contract, while a reservation records an authorised place or sleeping arrangement. Under Interrail's Pass conditions, a reservation alone is not a valid ticket and must be used with the corresponding valid pass.
How much does a seat reservation cost?
There is no single European price. The reservation cost depends on the service and provider, and an Interrail booking can also include a separate fixed, non-refundable booking fee. On DB long-distance services in Germany, an individual reservation cost €5.50 in second class and €6.90 in first class on 11 September 2026 when the ticket was not bought at the same time.
Sources
- Regulation (EU) 2021/782 on rail passengers' rights and obligations — European Parliament and Council of the European Union (EU rail services within the regulation's scope, subject to its national exemptions; this is a legal distinction, not a price list or universal booking rule.); checked 11 September 2026
- Do I need to reserve a seat with the German Rail Pass? — DB Fernverkehr AG (German Rail Pass journeys; the FAQ distinguishes travel within Germany from some international connections and night trains.); checked 11 September 2026
- Seat reservation on long-distance services — DB Fernverkehr AG (DB long-distance services in Germany; prices are the live page state checked on 11 September 2026 and are not Europe-wide amounts.); checked 11 September 2026
- Conditions de transport — THI Factory SA / Eurostar (Eurostar Continental Europe services defined in the conditions, excluding the separately specified London routes and Lille to Brussels exception.); checked 11 September 2026
- Conditions of Use for Interrail Passes, Version 19 — Interrail B.V. (Interrail Pass participating services; Version 19 is effective from 10 September 2026 and is not a universal rule for every European operator.); checked 11 September 2026
- Seat Reservation Booking Conditions — Interrail B.V. (Interrail reservation portal bookings used with an Interrail Pass; portal fees and conditions do not define every operator's own reservation price.); checked 11 September 2026
- PASS MENSUEL OU HEBDOMADAIRE TGV INOUI — SNCF Voyageurs (SNCF Voyageurs TGV INOUI weekly or monthly Pass in France; the page was updated on 1 April 2026 and its rules are not France-wide or Europe-wide.); checked 11 September 2026