Europe by Train Packing: One-Bag Guide
One bag is not optional on trains, it's the difference between enjoying the journey and dreading every platform.
Trains punish extra weight in ways planes never do. Stairs, narrow aisles, overhead racks, 12-minute connections, every kilogram you added at home becomes a problem you carry across five countries. Pack one soft-sided bag, keep it under 40L, and the rest falls into place.
The platform moment. One bag on your back, a connection to make, and no one to blame for the extra weight except yourself.
European trains are brilliant. Narrow aisles, compact overhead racks, and no one waiting to check your bag at the gate.
The whole point: arrive, drop the bag, explore. A soft pack makes every city feel manageable from the moment you step off.
There is something deeply satisfying about boarding a train in London and arriving, several days and several countries later, somewhere completely different. No airports, no security queues, no one telling you your toothpaste is one millilitre over the limit. Just you, your bag, and Europe's genuinely brilliant rail network rolling underneath you.
The problem is that a lot of people approach a train trip the way they'd approach flying, and the luggage choices that make sense on a plane make your life significantly harder on trains. This guide is for Interrail trips, multi-country rail adventures, and multi-city European breaks where trains are the main transport. Here is how to pack properly for it.
Why trains change everything about how you pack
Flying has rules that force you into good packing habits. Liquid restrictions mean you cannot overpack toiletries. Weight limits mean you cannot bring half your wardrobe. On trains, none of that applies. No liquids rule. No weight check. Nobody takes your bag away and hands it back at the other end. That freedom is both brilliant and dangerous, because it means the only person stopping you from bringing a massive wheeled suitcase is your own common sense.
Here is why common sense matters: on trains, you carry your own bag. Onto the platform. Up the stairs when the lift is broken (and it often is). Down the aisle between seats. Into the overhead rack or the luggage area at the end of the carriage. You might be running between a connection with twelve minutes to spare. You might arrive at a city station and need to walk twenty minutes to your accommodation. Every extra kilogram you packed is a problem you chose and brought with you.
"Every extra kilogram you packed is a problem you chose and brought with you." GO PAC team, across five countries and a lot of platform stairs
Trains are also small. The aisles are narrow. The luggage racks have limited space. Your fellow passengers will not be charmed by the spinning hard-shell suitcase you are trying to muscle past them.
The one-bag rule and why it matters on trains
The one-bag rule is simple: everything you are bringing fits in a single bag that you can carry comfortably on your back for at least twenty minutes. That bag goes in the overhead rack or under the seat in front of you, stays with you at all times, and you never have to check it or wait for it at the other end.
What kind of bag? A soft-sided backpack or a structured travel pack in the 30 to 45 litre range. Soft sides are better on trains than rigid cases because they can be squeezed into awkward rack spaces and do not clatter around. A dedicated travel pack (front-loading main compartment, structured back panel) is easier to access than a regular hiking rucksack, which requires you to unpack everything to get to the item at the bottom.
✓ Soft backpack
- Fits overhead racks easily
- No trouble on station stairs
- Good for 12-minute connections
- Hands free on platforms
- Slides through narrow aisles
✗ Rolling suitcase
- Falls off overhead shelves
- Nightmare on station stairs
- Impossible to sprint with
- Blocks narrow aisles
- Wheels catch on everything
Packing cubes are genuinely transformative for train travel. They mean your bag stays organised regardless of how many times you open it, and you can find your charger or your spare socks without tipping everything out on the bottom bunk of an overnight sleeper. Get a few in different sizes. They are worth it.
Always weigh your bag at home before you leave, every airline's carry-on limit is different, and the gate scale is the worst place to find out yours is over.
What to pack: essentials rated
The clothing strategy for train travel is the same as for any one-bag trip: fewer items, higher versatility, quick-dry fabrics where possible. Three to five days of outfits rather than one outfit per day, especially if you are travelling for longer than a week.
Beyond clothes, here is what earns its space in a train travel bag, rated by how much it actually matters:
Train-specific packing tips nobody tells you
The split between what goes in the overhead rack and what stays with you matters more on a train than on a plane. On a flight, your bag is above your head for a few hours and you can always reach up. On a long train journey, you might put your bag in the rack at the end of the carriage and not want to trek down to get it every time you want something. Pack a small personal item with everything you will want during the journey itself: phone, charger, earphones, snacks, a layer, your passport and Interrail pass if you are using one.
Most major European stations have coin or card-operated lockers, usually 4 to 10 euros for a day. Use them when you arrive before hotel check-in, or to explore a city light before an evening train. Find them near the main exits, not on platforms. Look before you need them, not when you are already carrying everything and getting frustrated.
Comfort for long journeys matters more than it does in the air. On a 10-hour train through multiple countries, you will want to be comfortable. Wear layers. Bring something to wear over your feet if you are removing your shoes. Pack a travel pillow if you have one, because leaning against a train window is great in theory and quite uncomfortable in practice after a few hours.
Also: read the carry-on packing guide if you are combining train travel with any flights on the same trip. The disciplines overlap nicely.
The overnight train: a special case
Overnight sleeper trains are one of the great pleasures of European travel and they deserve their own packing logic. If you are taking the Nightjet from Vienna to Paris, a sleeper through Scandinavia, or the overnight service down through Spain, you are essentially spending the night in a very narrow, gently rocking hotel room.
Couchette cabins are shared with three to five others, no better or worse than a hostel. Keep valuables in a small bag that stays with you. Some travellers loop the bag's strap around the bed frame. The reward for this logistical thought is waking up in a different country, stepping off onto a new platform, and having the whole day ahead of you.
Overnight train checklist
Pack one outfit you can re-wear: dark colours, quick-dry, no logos. It's your "things went sideways" backup and it weighs almost nothing.
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Find out where you are on the rail veteran scale
What's your bag situation right now?
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Overnight train: what do you pack?
Frequently asked questions
No weight or size checks on most trains, but practical limits apply hard. Overhead racks are small, aisles are narrow, and platforms often have stairs with no lift. A 40L backpack is the sweet spot that works everywhere. Beyond that, you are fighting the infrastructure with every journey.
For multi-country trips over two weeks, an Interrail pass usually makes sense financially and logistically. For two or three countries with pre-booked trains, point-to-point tickets are often cheaper. Either way: book overnight sleepers and high-speed trains well in advance, as seat reservations are often required separately and fill up fast.
Generally yes. Keep valuables in a small bag that stays with you. Some travellers loop their bag's strap around the bed frame as a basic deterrent. Couchette cabins are shared with three to five others, no better or worse than a hostel dorm in terms of security. The main risk is simply forgetting something when you get off in the morning, bleary-eyed at a new city.
Most major European stations have coin or card-operated lockers, usually 4 to 10 euros for a full day. Use them for day trips when you arrive before hotel check-in, or when you want to explore a city without your main bag before boarding an evening train. Find them near the main exits, not on the platforms themselves.
Yes. Most trains have no restrictions on food. Bring your own from station bakeries and supermarkets, which are significantly better value and quality than most on-board trolleys. Stocking up before a long leg is one of the reliable small pleasures of European rail travel.
Travel kit that earns its space
Every item in the GO PAC range is tested on real trips. No fillers, no fluff, just the kit we actually pack.