How to Plan an Interrail Route When You're Travelling Solo

Planning an interrail route with a group is mostly negotiation. Planning one on your own is mostly guessing.

There’s no one to talk you out of the ambitious version where you hit nine cities in three weeks. There’s no one to say “actually, Prague first makes more sense” or to split the cost of a sleeper train so it’s worth booking. You’re doing every part of it solo, weeks before you’re travelling solo, and the two problems are more connected than they look.

If you’re staring at a map with too many cities circled, here’s how to actually build a route, and why it’s worth thinking about who else might be on it before you’ve bought a single ticket.

Start with a shape, not a list of cities

The most common mistake with a first solo interrail route is building it as a wishlist. Rome, Barcelona, Berlin, Prague, Budapest, Amsterdam, all circled because they sound right. Then you open a map and realise you’ve picked five corners of Europe and a middle.

Pick a shape instead:

• A line. One direction, city to city, never doubling back. Lisbon to Barcelona to Nice to Milan. Simple to plan, easy to explain to anyone you meet along the way, and the shape that makes the most of overnight trains.
• A loop. Out from one city and back to it, useful if you’re flying in and out of the same airport. Munich, Salzburg, Vienna, Prague, back to Munich.
• A cluster. Fewer, closer cities with day trips between them, less time on trains, more time actually in places. Good if three weeks feels tight against nine cities.

Whichever shape you pick, draw it on an actual map before you commit to a single date. Distance on a train timetable is not the same as distance on a page, and a route that reads fine as a list of names can turn out to be four overnight trains back to back.

The official Rail Planner app is the quickest way to sanity-check this. It has real timetables, works offline, and will lay a route out as a day-by-day itinerary rather than a list of city names.

Work backwards from how much time you actually have

Three weeks sounds like a lot until you subtract travel days. A rough rule that holds up better than most: budget at least two full days in a city before you count it as “seen,” and one of those can be a travel day if you’re arriving early.

For a three-week trip, that’s realistically five to seven stops, not nine. For two weeks, three to five. It’s tempting to add “just one more” city because it’s on the way, but on the way and worth the detour aren’t the same thing, and the extra stop is usually the one you’re too tired to enjoy.

If you genuinely can’t cut the list, cut nights instead. One night in a smaller stop, three or four in the places you actually want time in. Uneven is fine. Even is what makes a solo route feel rushed.

Book the anchors, leave the middle loose

You don’t need every night booked before you leave, and for solo travel you often shouldn’t. But a few anchors make the trip hold together:

1. Your first two nights. Book these properly. Arriving somewhere new and solo with nowhere confirmed to sleep is a bad first evening.
2. Any city during a festival, holiday weekend, or peak season. These fill up and get expensive fast if you leave them.
3. Your last two nights, especially if you’ve got a flight home to catch.

Everything in between can stay flexible. This is one of the real advantages of travelling solo over travelling with a group: nobody else needs to agree before you decide to stay an extra night somewhere you like, or leave a place early that isn’t working for you.

Build in slack, not just stops

A route with zero spare time is a route where one delayed train wrecks the week. Solo, there’s no one to problem-solve with in real time, so the fix is to build slack in before you leave rather than improvise it later.

Two ways to do this:

• Leave one or two days completely unplanned, ideally roughly in the middle of the trip.
• Treat your “final” route as version one. Plans change once you’re actually moving, and that’s normal, not a failure of the planning.

The part solo route-planning skips over: who else is on it

Here’s the thing most interrail planning guides don’t mention. A route is a set of places and dates. It’s also, whether you think about it this way or not, a set of moments where you’ll be somewhere new and alone.

The two-day rule above exists because your first day in a city is usually the hardest one. You don’t know anyone, you don’t know the layout, and you’re deciding whether the trip is going well based on a few disorienting hours. That’s the exact moment a lot of people quietly wish they’d planned differently, not the route itself, but who else happens to be arriving at the same time.

This is a genuinely solvable part of the planning, not just something to hope works out in a hostel common room on the night. If you’re already putting dates against every stop on your route, that same information is what lets you find other solo travellers heading the same way, before you’ve left home.

That’s most of what finding a travel companion for your trip actually comes down to. Not luck on the night, but matching the plan you’ve already made against someone else’s.

A simple planning checklist

Before you book anything, work through this in order:

1. Pick your shape (line, loop, or cluster).
2. List your must-see cities, then cut it to fit the two-days-per-stop rule.
3. Check real train connections between them, not just distances on a map.
4. Book your first two nights, your last two nights, and anywhere during peak season.
5. Leave at least one or two days unplanned.
6. Put real dates against your route, and see who else is heading your way at the same time.

FAQ

How many cities should a solo interrail route have?

For a three-week trip, five to seven stops is realistic once you account for travel days. For two weeks, aim for three to five. It’s better to spend three or four nights in fewer places than one night in nine.

Should I book my whole interrail route in advance?

No. Book your first two nights, your last two nights, and anywhere during a festival or peak season. Leave the middle flexible so you can stay longer somewhere that’s working or move on from somewhere that isn’t.

Is it harder to plan a route travelling solo than with a group?

In some ways yes, since there’s no one to sense-check the plan with. But it’s also more flexible: you don’t need agreement to change it once you’re on the road. The main extra thing worth planning for is who else might be around when you arrive somewhere new.

What’s the best way to find other solo travellers on the same route?

The most reliable way is to match on both the place and the date, not just the place. Hostel common rooms and city-based apps only show you who happens to be around right now. Putting your actual route and dates against other travellers’ plans is what lets you know before you arrive.

Plan it with someone going the same way

You’ve already done the hard part by the time you’ve got real dates against a real route. That same plan is exactly what lets you find out if someone else is heading through Seville the same Tuesday you are, or crossing into Prague the same weekend.

That’s what we’re building at Antur: match on your actual route and dates, not just whichever city you both happen to be standing in. If you’ve got a trip coming up, the waitlist’s open — the more of your real route you add, the better the chance you’ll already know someone the day you arrive.