London to Paris from £52? Paris to Venice €29?
Paris to Amsterdam €35? Venice to Rome €29.90?
Prague to Vienna €14? Berlin to Prague €19.90?
Cheap train tickets for Europe are here, city centre to city centre, no airport taxes, no baggage fees, no booking fee, infants go free. You usually print your own ticket.
But you need the right website for the right journey. It would be lovely if there was one website which sold tickets for all European trains at the cheapest price, but there isn't (to understand why not, read this).
How to buy the cheapest train tickets online
|
On this site I'll tell you the best way to buy European train tickets for your specific journeys, as long as you have a credit card & internet access. Just select the city where your journey starts in the drop-down menu.
Buy cheap train tickets online
|
How to buy European train tickets
Click on the city where your train journey starts and I'll tell you the best & cheapest way to buy train tickets to cities in neighbouring countries and beyond. I can't write a page for every possible starting point, so use common sense - for example, if you wanted Sorrento to Groningen, you'd look up Naples to Amsterdam.
Why it matters which website you use
Each European country has its own national train operator with its own ticketing system and website. There are private operators too. Most operators offer cheap budget-airline-style fares if you book ahead, but you can only buy them from their own website or from an agency linked to that ticketing system.
Take Prague to Budapest for example: I tell you to book at the Czech Railways website as this sells advance-purchase tickets from just €21, international credit cards accepted, no booking fee, you print your own ticket. You can even choose your seat from a seating plan!
No other website offers these €21 Prague-Budapest fares, but several well-known ticketing sites will sell you a ticket for a whopping €90+ using an almost-obsolete inter-operator system called TCV, a conventional ticket which must be posted to you at extra cost (so over €100, ouch!). Can you now see why it matters where you buy?
Ticket delivery matters too. For example, you can book Vienna to Venice at Trenitalia.com, but tickets have to be collected from a ticket machine in Italy, no good if you're starting in Vienna. Thetrainline.com links to the Austrian Railways system & does e-tickets in either direction.
I take all this into account to tell you the cheapest & easiest way to book each specific journey, whether you live in the UK, USA, Australia, Singapore, wherever.
European train travel FAQ
How to use the French railways site www.sncf-connect.com
How to use the Italian railways website, trenitalia.com How to use the Spanish railways website, renfe.com
Tips for buying train tickets
-
Do you need to book in advance? Can you just buy at the station?
If you can get your head around the 3 different concepts of train ticketing explained here, you'll understand why sometimes you're told to buy at the station, at other times to book in advance.
-
(1) Local, regional, suburban trains = turn-up-and-go ticketing
Tickets for local, regional & suburban trains can be bought at the station. The price is fixed so there's no advantage in pre-buying. Reservation is usually not even possible, these trains can't sell out. Just buy a ticket at the station, hop on the next train and sit where you like. Think New York Subway! Buying online or on your phone saves a few minutes at the ticket office.
Domestic trains within the Netherlands, Belgium & Luxembourg work like this, reservation isn't even possible. You turn up, buy a fixed-price ticket at the station & catch the next train.
-
(2) Inter-city trains in France, Italy, Spain, Portugal, Sweden = airline-style ticketing
At the other extreme, inter-city trains in France, Italy, Spain, Portugal & Sweden work like airlines, as do international high-speed trains to/from France including London-Paris Eurostars, Paris-Brussels-Amsterdam Eurostars, Paris-Germany trains, Paris-Switzerland TGVs, Paris-Milan TGVs & Paris-Barcelona TGVs.
Fares are dynamic like air fares, cheap in advance, expensive if you buy on the day or for busy dates. For example, Paris to Amsterdam starts at €35 several months in advance (no refunds, no changes to travel plans), but costs €140+ for a fully-flexible ticket bought on the day. The most expensive fares usually allow changes & refunds, the cheapest fares mean no refunds, no changes to travel plans.
Every ticket comes with a reserved seat included, just like flights. Trains are all-reserved so can sell out, at least in theory, although in practice they seldom do except at busy periods.
The message here is clear: Pre-book to save money and be sure of a place!!
-
(3) Inter-city trains in the UK, Germany, Austria, Switzerland, Denmark & central Europe = traditional ticketing
Inter-city trains in the UK, Germany, Austria, Switzerland, Denmark and most of central Europe work the old-school way.
There's a standard price flexible fare with unlimited availability and a fixed price, good for any train that day. This can't sell out, you can always turn up, buy a ticket and hop on the next train, sitting in any empty unreserved seat.
However, standard price tickets are expensive. You can buy cheaper advance-purchase fares if you book ahead and commit to a specific departure, limited or no refunds or changes. These have various names: Advance in the UK, Sparpreis in Germany, Sparschiene in Austria, First Minute in Czechia. The price is dynamic with limited availability at each price point. The price rises as the cheaper tickets are sold.
A seat reservation is optional, usually for a small extra fee of around €3 to €5 per seat. If you choose not to reserve you can sit in any unreserved seat, of which there are usually many - for example, the average load factor on German IC & ICE trains is 65%. But you'll have to stand if you find all the seats taken.
For example, from Munich to Vienna you can buy a cheap advance-purchase ticket for €29.90, €39.90, €49.90, €59.90 etc., limited availability at each price level, only good for that specific departure, limited or no refunds or changes allowed. Or you can pay €108 for a standard price ticket, good for any train, unlimited availability, can't sell out. Neither type of ticket comes with a reserved seat, you can sit in any empty unreserved seat or you can pay an extra €4.90 to reserve a seat. I might not bother reserving if travelling solo mid-week in February, but I would reserve if travelling with my family on a Friday in July!
So pre-book to save money if you're happy committing to a specific train, but if you're happy paying full-whack you can buy on the day.
How far in advance can I book?
-
The single biggest reason people initially hit a brick wall trying to buy a train ticket is that they try to look too far ahead.
Overseas visitors planning a once-in-a-lifetime trip to Europe try to buy a 50-mile train ticket 11 months ahead and wonder why trains aren't shown and booking doesn't work. Local people buy train tickets as part of their daily life, to visit Granny, attend a meeting or go shopping. They plan such trips & buy tickets hours, days or weeks ahead, not many months. There's no rush, wait till bookings open!
If you need to book accommodation at your destination before train bookings open, no problem, you can hold accommodation risk-free at www.booking.com. They usually offer free cancellation up to 24 hours before your stay.
-
Don't buy a Eurostar ticket before onward trains open for booking! Eurostar reservations from London to Paris & Brussels open up to 11 months ahead, but your onward train probably opens 3 or 4 months ahead. I recommend waiting until onward train booking is open so you can confirm the actual times of your onward train for that date before booking a non-refundable Eurostar ticket. Unless you're prepared to take a calculated risk, as Eurostar tickets are changeable for a fee + the difference in fare. You can reduce the risk by booking an earlier Eurostar than the one you need, to would allow for the planned onward train being retimed earlier on that date.
One-way or round trip?
-
Almost all European fares are single-leg priced, where a round trip is simply two one-ways. I often find it easier to book one way at a time, rather than book out and back at the same time.
-
There are a handful of exceptions. Eurostar return fares are cheaper than two one-way fares, so always book a round trip on Eurostar as a return. The same applies to most journeys in Britain, where an Off-Peak one-way can be just 10p or £1 less than the equivalent Off-Peak Return.
Can I stop off?
-
As a general rule, Paris-Amsterdam with a stopover in Brussels means buying two separate tickets, Paris-Brussels & Brussels-Amsterdam.
People say "I want to go from A to C with a stopover at B" often bang their heads against a brick wall trying to book and end up 'confused' while people who think clearly "I want to go from A to B on this date, then B to C on that date" quickly & easily book both tickets.
-
Cheap advance-purchase tickets are almost always train-specific, for example Paris-Amsterdam from €35. You can't stop off with these fares as they are only good for the train you've booked. If you need to, you can get off short of your destination with these tickets (generally fine in mainland Europe, but not in the UK), but the unused part of your ticket becomes worthless.
On trains with compulsory reservation (for example, long-distance trains in France, Spain or Italy), you can't stop off even with flexible tickets, as they too are only valid on the train you've booked.
On local trains and on long distance trains without compulsory reservation, you can often stop off if you have a flexible ticket which allows stopovers. But check the small print as every operator has different rules. It's often best to play safe & buy two tickets.
-
There is one useful exception, where you can pre-programme a stopover into a cheap advance-purchase ticket
When booking a journey to, from, across or within Germany at the German Railways website, int.bahn.de, you can pre-programme a stopover using the useful Stopovers feature. Just enter a city and a specified number of hours as the length of stay and it'll give you (for example) a Munich to Vienna ticket from €29.90, but with a stopover in Salzburg included. Or Berlin to Prague with a stopover in Dresden. Maximum 2 stopovers, within the 2 day period for which tickets are valid. Worth knowing!
-
And of course, if you are making a long multi-train journey such as London to Malaga where each train is ticketed separately anyway, you can arrange stopovers simply by booking each leg for whatever date and time you want.
Senior & youth fares
-
Advice on senior fares
Many seniors waste time obsessing about being Senior. Don't! Just go to the relevant train operator website, enter your age in the passenger details, and run an enquiry.
If there are any relevant senior fares, they'll show up. If there aren't, they won't and you'll see normal adult fares. Simples! You can pretty much say the same thing about youth fares.
If you are offered a senior or youth fare just because you entered your age, then no special railcard is needed, just carry proof of age such as your passport.
But don't buy any fare marked Carta, Carte, Karta, Cartafrecchia, which all mean Card. Most websites ask you what discount cards you have and won't show you card-discounted fares if you don't have one, but one or two sites show railcard-discounted fares to everyone. The biggest culprit is Trenitalia.com which always shows Cartafreccia fares - don't buy these if you don't have a Cartafreccia card. It asks you for your Cartafreccia card number in the next step, so you can't book accidentally, but it confuses people who don't realise Cartafreccia is a discount card they don't have!
-
The senior or youth fare is often irrelevant
Many international train fares work like this: €29, €39, €49 or €59 limited-availability advance-purchase fares for anyone of any age, €80 Senior fare, €100 full-flex fare. The senior rate is typically a % discount off the megabucks fully-flexible fare that you'd seldom want to buy, not a discount off all fares. Only if you needed to travel at short notice when the cheap advance-purchase fares were sold out would there be any point in buying the senior fare.
-
Railcards for seniors & youths: Useful for regular users, a distraction for occasional users
Some countries have their own senior or youth railcards. You buy the railcard for a fee and it gives discounts on journeys within that country for a year. In some cases such railcards can be bought online (e.g. France's Carte Avantage), in other cases (Spain's Tarjeta Dorada) you can only buy them in person at a station.
However, if you'll only be there for a few weeks, you may clock up enough mileage to make a railcard worthwhile. And if you can only buy the railcard when you get there when all the cheap advance-purchase fares have sold out, a card might give you a 25% discount off a €100 full-flex fare when you could have booked a €29 fare online well in advance without a railcard.
As a general rule, you only need consider such a railcard if you are planning to make multiple journeys in that country during the course of a year, unless you can prove it'll save money. For most visitors, railcards are a distraction, just buy cheap advance-purchase fares.
Incidentally, British Senior Railcards & 16-25 Railcards don't give discounts on Eurostar or outside the UK. They're National Railcards.
-
To learn more about senior or youth railcards in a particular country
Go to the relevant rail operator website, see the list on the links page.
-
Rail+Senior card
There used to be an international railcard called a Rail+Plus Senior card which gave a 25% reduction on full fares for international journeys between a range of western & eastern European countries. However, it has now been withdrawn, no great loss as it wasn't valid on any of the 'globally priced' international trains in western Europe, which now means almost all of them!
Child fares
-
Infants under a certain age go free on trains, no ticket is required and you don't need to add them to your booking (Spain is an exception where infants need a ticket and so is Russia). You just bring them with you, they sit on your lap or play on the floor, they don't qualify for their own seat although no-one will mind if you plonk them down in a spare seat if there is one. Children under a certain age travel at a child rate, sometimes a 50% discount, sometimes a special child rate.
Infant & child age limits vary from country to country, so if you are travelling with children, see the train travel with children & child age limits page for details. There are two key pitfalls to watch for when booking children:
-
Child fare more expensive than adult
This happens occasionally when (a) the train operator has created an adult full-price fare and a child full-price fare and some cheap adult advance-purchase fares, without creating any child advance-purchase fares, and (b) the website software isn't clever enough to know that a child can use an adult advance-purchase fare, just not the other way round! So keep your eyes open and brain engaged! The solution is to re-run the enquiry with 2 adults selected, or find a better booking website.
-
Some websites apply the wrong child age limits
Due to technical limitations French Railways-based websites including www.sncf-connect.com apply the French Railways under-4 free, under-12 child fare age limit to any train they book, whatever age limits in fact apply. It's a particular problem when booking Paris-Germany trains as French Railways blindly apply their own age limit, but if you book the same trains using the German Railways website int.bahn.de this applies the more generous German policy, under 6s free, under-15 child rate, under 15s free if accompanied by an adult using a Sparpreis fare. So if you have kids, use the German Railways website not the French!
-
Zen & the sound of one hand clapping
Incidentally, if you took a 5-year-old on a TGV from Paris to Stuttgart he wouldn't need a ticket according to the German Railways website as he's under 6, but according to the French Railways website he's over 4 so he'd be travelling illegally without a child ticket. It all depends which website you don't use to not buy him a ticket. Is this the rail equivalent of one hand clapping? I knew a philosophy degree would come in handy!
-
When kids under 15 go free
Two long-standing permanent offers are worth knowing about:
On journeys to, from, across or within Germany, kids under 15 usually go free when accompanying their parent, guardian or grandparent using a cheap advance-purchase Sparpreis fare booked at the German Railways (DB) website int.bahn.de. Paris to Salzburg, Amsterdam to Prague, Brussels to Vienna, Berlin to Zurich, Munich to Copenhagen, it applies to all these and more when booked at int.bahn.de.
On journeys to, from or within Austria, kids under 15 go free when accompanying their parent, guardian or grandparent using a cheap advance-purchase Sparschiene fare booked at the Austrian Railways (ÖBB) website www.oebb.at. Vienna to Venice, Vienna to Prague, Budapest to Salzburg, Innsbruck to Verona, it applies to all these and more.
In both cases, you just add your child to the booking in the normal way and you should find they are included at no cost.
Railpasses
-
Railpasses give unlimited flexible travel around most of Europe or you can buy a pass to cover just one country. See the Interrail pass page if you live in Europe or the Eurail pass page if you live outside Europe.
-
Railpasses aren't always about saving money, for a simple trip involving up to 4 train rides the cheapest option will be advance-purchase fares booked 2 to 4 months ahead, not four days of unlimited flexible travel using a pass. But passes give you the freedom to tour Europe flexibly, advance-purchase fares tie you to a specific train, no refunds, no changes to travel plans. Touring Europe with a stack of inflexible advance-purchase fares would be risky because if a strike, fire, flood or landslide cancelled one ride so you couldn't take the remaining trains as planned, your remaining tickets would become worthless. With a pass you can re-plan, re-schedule and re-route as you like.
-
If you simply want to travel from A to B cheaply, pre-book an advance-purchase ticket a month or two ahead and forget about passes. Railpasses generally save money over expensive long-distance flexible tickets, but not always against the cheap advance-purchase fares that you can get by planning a few months in advance. For a summary of the classic 'Should I buy a railpass or point-to-point tickets?' argument, see the Railpass & Eurail page or the Interrail pass page.
Complex journey? Split the booking!
-
The most important piece of advice, when people find booking systems won't handle (say) Avignon to Pisa all in one go, or won't give a cheap fare for (say) Zurich to Florence, or the Italian Railways website won't book an indirect train to Luzern: Split the booking!
-
Some booking systems can only handle direct trains, for example Spain www.renfe.com (other than a limited number of key pre-programmed connections), and Hungary www.mavcsoport.hu. The Italian railway website www.trenitalia.com can handle changes of train within Italy, and direct trains from Italy, but not journeys with a change of train outside Italy, such as Milan to Luzern with a change at Arth Goldau. The French system at www.sncf-connect.com can handle a maximum of 2 or 3 changes, but more than that and it won't work. Very few sites can handle complex multi-leg journeys.
-
The solution is to break the journey down into bite-size chunks, then book each part of the journey (and if necessary, each individual train) at the relevant operator's website. It's often helpful to start by finding a suitable end-to-end journey using the German Railways all-Europe online planner at int.bahn.de, as this can happily work out multi-country multi-leg journeys, but not sell tickets.
-
For example, no train operator website can book you from Amsterdam to Benidorm near Alicante in Spain all in one go. But www.nsinternational.nl will book Amsterdam-Paris. The French Railways website www.sncf-connect.com will book Paris-Barcelona and the Spanish Railways website www.renfe.com will book Barcelona-Alicante. A local ticket from Alicante to Benidorm can then easily be bought on the day at the station, so no need to worry about that. Some creative thinking is sometimes required!
Check ticket delivery!
-
If I'm unfamiliar with a ticket selling website, the first thing I check is ticket delivery. With trains, not everything is e-ticketed. For example, Italian railways Trenitalia.com will happily sell a ticket from Vienna to Venice, but hard-copy tickets must be collected from a Trenitalia ticket machine at an Italian station, no good if you're starting in Vienna. The Austrian Railways website oebb.at gives print-your-own tickets for these trains so can be used to book this route in either direction. I take this into account in recommending the right website to use for each journey.
Avoid foreign currency conversion fees
-
If you live in the UK or another European country, get a Curve card for a better exchange rate and to avoid foreign currency transaction fees when buying tickets in a foreign currency, see explanation below. It also saves on fees & exchange rates when taking cash out of foreign ATMs.
When is it better to book by phone?
-
If there's a persistent glitch with the online systems, or none of the systems seem to book what you want, pick up the phone! People forget you can still do this. See the advice on who to call here.
-
You may also need to pick up the phone if you have a specific requirement, such as a specific seat or a seat in a specific carriage. And there are still a few journeys that can't be booked online at all, for example Sofia to Istanbul.
-
Finally, if you're booking a more complex journey, you may prefer to book all your tickets together by phone, even though you pay a booking fee, rather than have to make multiple bookings on several websites making sure that each of these connects. See the How to buy tickets by phone page. Some agencies are better than others for specific routes or countries, because of the system they use.
Have your trip arranged as a package
-
Booking your own tickets online and putting a trip together yourself is the cheapest option. But if time, hassle and a lack of the necessary expertise are your main concerns, not cost, you can get a specialist train tour agency to arrange your trip, with train tickets, transfers and hotels arranged for you. As you're booking a package, not individual tickets, it also gives you greater protection if something affects part of your journey, such as a strike.
-
Railbookers is a market leader with offices in the UK, USA & Australia.
UK call 0207 864 4600, railbookers.co.uk
US call free 1-888-829-4775, see website
Canada call 1-855-882-2910, see website
Australia call 1300 971 526, see website
New Zealand call 0800 000 554 or see website.
-
Byway (Byway.travel) is a relatively new UK-based eco-holiday firm with a 5-star TrustPilot rating. They can book trips for you as a package including hotels. Byway includes package protection, a 100% Covid refund guarantee, free disruption & re-planning and on-demand WhatsApp support while you're away. They can build a trip to your requirements, email them or use the contact form. Please say you heard about them from Seat 61.
Alternatively, to see pre-configured packages from the UK to various destinations, use the journey planner on their website. First book a one-way outward journey to your destination city on your outward date. Then change the direction of the arrow and book an inward journey on your return date. The journey back to the UK can be from a different location if you like, for example if you plan to travel around before you return to the UK.
-
Tailor Made Rail can also organise European train tours, with hotels and transfers. Call their dedicated seat61 phone line 020 3778 1461 and quote seat 61 when booking. From outside the UK call +44 20 3778 1461. Lines open 09:00-17:30 Monday-Friday. Their website is www.tailormaderail.com.
Booking accommodation when you travel by train
-
You can book your hotels before booking your trains. Trains normally can't be booked more than 90 days ahead and people often want to confirm their accommodation before than that. I generally use www.booking.com for hotels as they usually let you book rooms with free cancellation. This means you can book hotels at no risk, months before train bookings open.
-
Left luggage for free. Hotels will almost always look after your bags for free if you need to check out and catch an afternoon or evening train, or if you arrive in the morning before you can check in to your room.
-
Hotel buffet breakfast, even if you're not staying there. If you're arriving early, perhaps by overnight sleeper train, don't forget that you can usually walk into a large hotel near the station and pay for their buffet breakfast even if you're not staying there. All the coffee, juice and cooked breakfast you can eat and drink, for a fixed price.
Buy tickets starting in the UK
For journeys within Britain
Guide to train tickets & fares within the UK
London to Scotland by Caledonian Sleeper
London to Cornwall by Night Riviera sleeper
Train & ferry tickets to the Channel Islands
Train & ferry tickets to the Isle of Man
For journeys to Ireland
Cheap train & ferry tickets to Belfast for £58
Cheap train & ferry tickets to Dublin & Ireland from £51.10
For journeys to mainland Europe
Each destination country page gives step-by-step instructions for booking a train journey from the UK to destinations in that European country.
Guidebooks
Paying for a guidebook may seem an unnecessary expense, but it's probably just a tiny fraction of what you're spending on your whole trip. You will see so much more, and know so much more about what you're looking at, if you have a decent guidebook. For the independent traveller, I think the best ones out there are either the Lonely Planet or the Rough Guide. Both guidebooks are excellent, and you won't regret buying one..! Alternatively, the 'Europe by Rail' guide combines country information with basic train information.
Click the images to buy at Amazon.co.uk
Hotels in Europe
Backpacker hostels
www.hostelworld.com: If you're on a tight budget, don't forget about the backpacker hostels. Hostelworld offers online booking of dorm beds or ultra-cheap private rooms in backpacker hostels in most European cities at rock-bottom prices.
Travel insurance & VPN
Always take out travel insurance
You should take out travel insurance with at least £1m or preferably £5m medical cover from a reliable insurer. It should cover trip cancellation and loss of cash & belongings up to a reasonable limit. These days, check you're covered for covid-19-related issues, and use an insurer whose cover isn't invalidated by well-meant but excessive Foreign Office travel advice against non-essential travel. An annual policy is usually cheapest even for just 2 or 3 trips a year, I have an annual policy with Staysure.co.uk myself. Don't expect travel insurance to bail you out of every missed connection, see the advice on missed connections here. Here are some suggested insurers, I get a little commission if you buy through these links, feedback always welcome.
www.staysure.co.uk offers enhanced Covid-19 protection and gets 4.7 out of 5 on Trustpilot.
www.columbusdirect.com is also a well-know brand.
If you live in the USA try Travel Guard USA.
Get an eSIM with mobile data package
Don't rely on WiFi, download an eSIM with a European mobile data package and stay connected. Most newer mobile phones can download a virtual SIM including iPhone 11 & later, see device compatibility list. There's no need to buy a physical SIM card! Maya.net is a reliable eSIM data retailer with a 4.5 out of 5 Trustpilot rating and a range of packages including unlimited data.
Get a Curve card for foreign travel
Most banks give you a poor exchange rate then add a foreign transaction fee on top. A Curve MasterCard means no foreign transaction fees and gives you the mid-market exchange rate, at least up to a certain limit, £500 per month as I write this. The money you spend on your Curve card goes straight onto one of your existing debit or credit cards. And you can get a Curve card for free.
How it works: 1. Download the Curve app for iPhone or Android. 2. Enter your details & they'll send you a Curve MasterCard - they send to the UK and most European addresses. 3. Link your existing credit & debit cards to the app, you can link up to two cards with the free version of Curve, I link my normal debit card and my normal credit card. 4. Now use the Curve MasterCard to buy things online or in person or take cash from ATMs, exactly like a normal MasterCard. Curve does the currency conversion and puts the balance in your own currency onto whichever debit or credit card is currently selected in the Curve app. You can even change your mind about which card it goes onto, within 14 days of the transaction.
I have a Curve Blue card myself, it means I can buy a coffee on a foreign station on a card without being stung by fees and lousy exchange rates, just by tapping the Curve card on their card reader. The money goes through Curve to my normal debit card and is taken directly from my account (in fact I have the Curve card set up as payment card on Apple Pay on my iPhone, so can double-click my phone, let it do Face ID then tap the reader with the phone - even easier than getting a card out). I get a little commission if you sign up to Curve, but I recommend it here because I think it's great. See details, download the app and get a Curve card, they'll give you £5 cashback through that link.
Get a VPN for safe browsing. Why you need a VPN
When travelling you may use free public WiFi which is often insecure. A VPN encrypts your connection so it's always secure, even on unsecured WiFi. It also means you can select the geographic location of the IP address you browse with, to get around geoblocking which a surprising number of websites apply. See VPNs & why you need one explained. ExpressVPN is a best buy with a 4.7 out of 5 Trustpilot ranking which I use myself - I've signed up as an ExpressVPN affiliate, and if you go with expressvpn.com using this link you should see a special deal, 3 months free with an annual subscription. I also get some commission to help support this site.
Carry an Anker powerbank
Tickets, reservations, hotel bookings and Interrail or Eurail passes are often now held on your mobile phone. You daren't let it run out of power, and you can't always rely on the phone's internal battery or on being near a power outlet. I always carry an Anker powerbank which can recharge my phone several times over. Buy from Amazon.co.uk or Buy from Amazon.com.
Touring cities? Use hill walking shoes!
One of the best things I've done is swap my normal shoes for hill-walking shoes, in my case from Scarpa. They're intended for hiking across the Pennines not wandering around Florence, but the support and cushioning for hiking works equally well when you're on your feet all day exploring foreign cities. My feet used to give out first and limit my day, now the rest of me gives up before they do!