One of the first conversations that my husband and I ever had was about an urge we both had to travel across Europe by train. I took a year out between school and university, but worked throughout that year. Later on I started travelling, but apart from trips to Finland, Estonia, Sweden and Germany in the summer after uni I’ve always otherwise been limited by how much leave I can take from work, and then in later years by school holidays. It seemed that the chance to go interrailing had passed me by, but that is definitely not the case and I rectified the situation this summer.

I’m lucky enough to have travelled in Europe a fair bit already and last summer all five of us took the Eurostar from London through to Rotterdam and this ignited a bit of a spark of an idea in us. A bit of research showed us that an interrail pass definitely isn’t just limited to students with backpacks, and also, modern technology and phone apps in particular have changed how the system works somewhat.
Initial sources of inspiration and information
One of the best sources of information I found when initially researching our trip was the excellent Man in Seat 61 website. There isn’t much that Mark, the man behind the site, doesn’t know about train travel. He’s worked for various train companies and even the Department for Transport here in the UK, but since 2007 he’s worked full time on his excellent Seat 61 site which provides everything from route suggestions through to walk through descriptions of train stations across Europe and step by step guides into buying train tickets or rail passes to undertake adventures.
It was through him and various European train travel related Facebook groups that I came to realise that interrail fans came in all different shapes and sizes, and that rail travel across Europe was no where near as mysterious as it at first sounded. An interrail pass is relatively easy to purchase from Interrail’s own website. There are however a vast array of passes to choose from, depending on how long you want to travel for and how many days you plan to actually use trains in that time.
How does an Interrail pass work?
In the “olden days” it was simply the case that once you had an Interrail pass all trains were free. You simply hopped on the one you fancied, showed your paper pass to the guard or ticket inspector and that was it. In these modern days of mandatory seat reservations it’s not so simple. Firstly, whilst you can still request a paper pass, most people use the app version, which is excellent.
Some trains do require mandatory seat reservations though. Depending on which country you are in these can range from being free, or just €3 each, through to being significantly more. When you come to actually using the trains with your pass you can find out the exact costs, but the headline thing to bear in mind is that if you’re starting in the UK you will need to pay a significant seat reservation fee to travel on Eurostar out of St Pancras (and back in again) and also on most high speed trains across France. It is still the case that you can join most regional trains for free, but depending on how far you want to travel, it is likely to that high speed trains will form part of your journey so budget accordingly.

In/out travel days
The second thing to point out is that with a pass you get two travel days only in your home country. So if you’re in the UK, like we are, you get one travel day to leave the country, and a second to return. For the other days it doesn’t matter how many countries you use your pass in, and it is not mandatory to use the pass in your own country. Some people choose to head out of the UK by train and then fly back from their end destination (which is what we ended up doing), whilst others might do that in reverse. Some people use a cheap flight to get to their train starting point, and possibly the same at the end of their journey. This does mean that if you plan to break your outward or return journey in London, think carefully about how you use your pass.
First or second class?
This is a question that I hadn’t even contemplated before buying an Interrail pass. Train travel in the UK is mainly in my experience in standard class. First class tickets are vastly more expensive, and are only a rare treat when you spot a deal or use a site like Seatfrog to bag an upgrade.
In mainland Europe First Class isn’t quite so unattainable. The difference in prices is less and you see more normal people choosing to travel that way. If you’re travelling some distance in the UK before getting to mainland Europe remember that a First Class interrail pass will be valid for your journey to and from London if you plan to connect with the Eurostar there. That means you can enjoy First Class on LNER, Avanti West Coast or GWR on your way to London, and that often includes a meal on the train too. This isn’t the case in all other European countries but saving the cost of a meal should again factor into your budgeting decisions.

Travelling with children or as a senior
Youth interrail passes (from the age of 12 up to 27) are cheaper than standard adult tickets, but it is worth noting that there are also reduced price tickets for seniors (age 60+). In addition to all this, if you are travelling with a child who is 11 or younger then their pass is free. Yes, free. £0. Even if it is a first class pass. Travelling with a seven year old this was music to my ears! Seat reservation fees are still applicable, but it makes them much more palatable when it’s on top of a free ticket!
Look for offers
Before buying out Interrail passes I registered on the Interrail site for their mailing lists and started to receive offers from them. At points there was 10% off passes that were to be used in certain months, at other points the passes had their usual 11 month validity (as standard you get 11 months from buying your interrail pass to activate it and start travelling).
I had also heard about how in the past Interrail had had a large Black Friday sale which involved 25% off all Interrail passes. This isn’t guaranteed to happen every year, but having seen it in the past I thought it worth holding out and seeing and bingo the email arrived telling me there was going to be 25% off all passes, including first class ones! Bargain. It makes a first class pass at the reduced price less than you would pay for a standard class one outside of the sale. Buying in a sale months before you plan to travel also helps you to spread the cost of your trip somewhat.
Where to go
Once you’ve decided on the type of pass to go for, how many days you want, and whether to go first class or not you have hopefully managed to take advantage of a sale and have your passes secured. You register a passenger’s name and passport details at the time of purchase, but you don’t then need to do anything else with them until just before your trip when you’re ready to activate them. Just make sure you know how long you have before you have to activate your pass. It’s usually 11 months, but these Ts & Cs might change in some sales.
They you’re on to the fun part – deciding where to go. You might have a general idea in mind like – let’s go to Italy, or Switzerland – but how do you see where it is possible to go, as obviously you are restricted slightly on where there are train tracks!
Every year the European Rail Timetable is published which sets out across multiple countries exactly which trains go where when. You can buy this as a big paperback book (the 2026 version is available here) but you can also access the data in it electronically through the Rail Europe website. Again, this is all super once you’ve decided where to go and just want to know what time of day trains run, but there’s a step before that that I think is only really sorted with a paper map.
Paper Maps
When we started planning I went online and bought myself two maps.

The first was one published by the European Rail Timetable which shows all the routes across Europe. It helped us to see where tracks went so that we could make decisions about where to go between and estimate how many steps we night need to go to our end goal location. Whilst this was great for the tramlines I felt I wanted a bit more in terms of understanding the lay of the land. I therefore also purchased this Lonely Planet map of Europe which shows you where the mountain ranges are, gives some suggestions of what you could see in different places and even some suggested itineraries. There are even stickers so you can plot your planned route on the map itself. Not something we used, but I can see how it might be a good way of showing children where you’re off to.
These two maps got a lot of use when we planned our trip. Spread out over the kitchen table they allowed us to really see where places where and be inspired to follow train lines and see where we could end up on them. If it hadn’t been a chance conversation about how close we were going to be to the border or the Czech Republic with our planned route we might not have popped over and see the city of Brno, which turned out to be one of the highlights of our trip!
Last thoughts
It can be so easy to feel daunted about planning an interrail trip, and I do feel that planning is necessary, especially if travelling with children as we were, but once you’ve taken the first step of buying a pass there is so much information and help out there that the planning really is part of the fun. Feel free to ask questions of anyone you know who has been interrailing, and I too am happy to try and help.
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