How to Book Train Tickets
in Europe

Every railway sells its own trains, and buying direct usually gives you the full range of fares, with changes and refunds handled by the company that runs the train. Comparison sites search several operators in one go, which helps most where rival companies run the same line - Italy's Frecciarossa and Italo, or Spain's Renfe, Ouigo and Iryo - and on cross-border trips that involve more than one railway.

Neither route is automatically cheaper. Whichever you use, compare the final price after any fees, and read the ticket conditions - how changeable it is matters as much as the headline fare.

Trains go on sale when an operator releases them, and that depends on the company, the route and sometimes the season. France's SNCF, for example, typically opens high-speed sales in batches for each travel period rather than on a fixed rolling window. If your date is not bookable yet, the train has most likely just not gone on sale - it does not mean it is full.

The practical rule: once your plans are fixed, find out when your train goes on sale and book then, especially for summer, holiday periods and Friday or Sunday travel on busy lines.

Most long-distance operators sell a ladder of fares: low-priced tickets with limited quantities and strict conditions, and more expensive tickets you can change or refund. The names differ - Deutsche Bahn's Super Sparpreis and Sparpreis are tied to your chosen train while its Flexpreis is not; Trenitalia sells Super Economy, Economy and Base fares; British operators sell Advance, Off-Peak and Anytime tickets - but the trade-off is the same.

Eurostar shows how much the conditions can vary. At the time of writing, Eurostar Standard and Plus tickets can be changed with no fee up to an hour before departure and refunded, for a fee, up to seven days before, while Eurostar Premier can be exchanged or refunded with no fee up to 48 hours after departure. Check the current conditions when you book.

Pay for flexibility only where you are genuinely likely to change plans - for an early outbound train after a late arrival, or the leg after a tight connection.

This is the booking decision that matters most on a journey with a change. The EU's rail passenger rights rules (Regulation 2021/782) protect missed connections on a through ticket - a journey sold as a single contract, by one railway or by railways that have agreed to sell it together. If a delay on the first train makes you miss the second, the protections for delays apply to the journey as a whole.

With separate tickets - say, one booking to Brussels and another onward - you have no EU right to be carried on the next train if the first one runs late, provided you were told before buying that they were separate contracts. If a ticket seller combined separate tickets on its own initiative without telling you, the seller can be liable to refund the total and pay compensation.

A practical example is London to Cologne: Eurostar to Brussels, then a train on to Cologne. Eurostar sells some journeys like this with the connection included, but those usually go on sale later than Eurostar's own trains. If you book the two legs separately instead, give yourself plenty of time at Brussels-Midi.

These rules cover rail journeys in the EU; domestic UK trains follow their own rules. The European Commission has proposed extending protection to more combined journeys, but at the time of writing that is a proposal, not law.

A train that crosses a border is often sold by both national railways, and sometimes by a third - Deutsche Bahn's website, for example, is a widely used planner for journeys across Europe. The fare and the ticket conditions for the same train can differ between them, so on routes such as Berlin to Prague or Prague to Dresden it is worth checking both railways' sites as well as a comparison site.

France to Spain is a good example of a journey that can involve two operators. SNCF runs direct high-speed trains from Paris to Barcelona, and Renfe runs AVE trains between Spain and French cities such as Lyon and Marseille; Paris to Madrid usually means changing in Barcelona. These high-speed trains are reservation-only, so seats are allocated when you book. Where one seller offers both legs together, a through booking is the safer choice; if not, allow a comfortable connection. See Paris to Barcelona and Paris to Madrid for the details.

Short, practical notes on the operators Railero's route guides link here for. Fares and sales dates change, so use the official sites for your date.

A rail pass replaces individual tickets rather than helping you buy them, and it pays off only for trips with many flexible journeys - for two or three fixed journeys, advance tickets usually win. Our Rail Passes guide walks through the comparison.

Some trains, including Eurostar and many high-speed and night trains, need a seat reservation; with an ordinary ticket on those trains the seat usually comes with the booking, while pass holders buy the reservation separately. See our Seat Reservations guide, or check a specific journey with the Reservation Checker.

Most operators now issue tickets to an app or as a PDF or barcode you can show on your phone; keep them available offline in case of poor signal. Some tickets are issued in your name, so carry the ID you booked with.

Whether you can change or refund a ticket depends on the fare you chose, not just the operator, so check the conditions in your booking before you travel. If you booked through a comparison site, changes are usually handled through that site.

• Assuming a train is full because your date is not bookable yet - it has usually just not gone on sale.
• Booking separate tickets with a tight connection, then missing the second train after a delay.
• Buying the cheapest non-changeable fare when your plans might still move.
• Searching only one operator where rival companies run the same line, as in Italy and Spain.
• Travelling on a rail pass without booking the compulsory seat reservation on trains that need one.
• Booking the right city but the wrong station - check the station name on your ticket before you travel.