Sunday night, 10:15 PM. My flight to Hamburg leaves at 6:40 the next morning. I'm staring at an open backpack on the bed, wondering what on earth possessed me. Five days. Three cities. Two client presentations. A dinner with C-level executives. And everything has to fit into a single carry-on. Suit included.
I went through with it anyway. Here's my honest business trip packing list, what actually worked, and where the whole thing fell apart.
Why Carry-On Only in the First Place?
Short answer: money and time. My last Eurowings flight cost me 38 euros for checked luggage. Each way. Then 45 minutes waiting at the baggage carousel in Munich. That's 76 euros and ninety minutes I'll never get back on a single round trip.
52% of passengers now prefer traveling with carry-on only, according to the IATA Global Passenger Survey 2024. Sounds like a trend, until you look at the numbers. I wanted to know: does carry-on only business travel actually work when you're wearing a suit to client meetings?
How that looks without the business constraints, check out our experience report: 3 weeks through Europe with just 7 kg (Coming Soon).
The route: Hamburg (Monday and Tuesday), train to Berlin (Wednesday and Thursday), flight home Friday.
Preparation: The Suit Problem
The most important decision happened two weeks before departure. Which suit? My colleague Frank, who's been flying to London every other month for six years, shared a simple test. I later found the same advice on Carryology: bunch up a sleeve, let go, watch what happens. If the wrinkles relax quickly, the fabric works for travel.
When it comes to a suit in carry-on, fabric choice is the whole game. My navy wool suit? Passed. My light gray linen suit? Total disaster. The creases stayed like they were etched in stone.
I went with the wool suit and paired it with a cotton-stretch blend shirt. Wollakademie.de has a solid explanation of why wool and merino perform so well on the road. Creases fall out, odor stays away.
My Business Trip Packing List: What Actually Fit in the Bag
My setup for this business trip packing list: a tomtoc 40L Reiserucksack, TSA Freundlich Groß Handgepäck Rucksack Travel Backpack für 15,6-17 Zoll Laptop, Flug Genehmigt Bordgepäck Spritzwassergeschützt Kabinenrucksack für Reise Weekender Trip as my main bag. 40 liters, TSA-friendly, fits carry-on dimensions for Lufthansa (55 x 40 x 23 cm) and also Eurowings with SMART fare (Coming Soon). The backpack was the right call because it opens completely flat, like a suitcase. I didn't want to be digging around blindly. For a full comparison of which models open this way, see our tested carry-on backpacks compared.
The suit went in on top. Under it: two dress shirts wrapped in tissue paper, three merino T-shirts as base layers (you can wear these two days in a row without anyone noticing, I'll just say it plainly), one pair of chinos for the train evening, five changes of underwear and socks. Sounds like a lot. It really isn't, if you get the shoulder-to-shoulder folding technique right.
For laptop carry-on travel, the dedicated laptop compartment matters more than people realize. My 15.6-inch model went into its own compartment, with the BAGSMART Kulturbeutel kulturtasche Damen, Kulturtasche zum Aufhängen, Toiletry Bag Kosmetiktasche Reise Waschtasche Transparent für Makeup,Toilettenartikel(L-Blau) toiletry bag on top. With my backpack, that was a genuine advantage over a rolling trolley.
Add charger, USB-C hub, and headphones. The Compression Packing Cubes Set für mehr Platz im Koffer & Backpack - Packwürfel Packing Cubes Compression als Rucksack Organizer - Travel Packtaschen Reise - Camping Zubehör & Wander Ausrüstung packing cubes for shirts and socks. Dress shoes worn on the plane. Casual sneakers in the bag.
That last bit sounds minor. It's the difference between "it fits" and "it definitely does not fit."
That's the whole business trip packing list for five days, and it actually goes into one carry-on bag. For a full rundown of carry-on rules by airline, our Lufthansa carry-on rules 2026 guide (Coming Soon) covers weight limits and exceptions.
tomtoc 40L Reiserucksack, TSA Freundlich Groß Handgepäck Rucksack Travel Backpack für 15,6-17 Zoll Laptop, Flug Genehmigt Bordgepäck Spritzwassergeschützt Kabinenrucksack für Reise Weekender Trip
Days 1 Through 3: What Worked
Hamburg airport went smoothly. No line at check-in, straight through security. From entrance to gate: 17 minutes. The person sitting next to me on the plane later waited 40 minutes at the baggage belt. I was already in a taxi.
The suit arrived in better shape than I expected. The shoulder-to-shoulder folding technique (turn the right shoulder inside out, fold the left over it, then fold in half lengthwise) did its job. Not flawless, but a few minutes in the bathroom with the hot shower running steamed out the remaining creases. Old hotel trick. I honestly didn't believe it would work, and then I stood in front of the mirror thinking: okay, that actually works.
For the shirts, the Compression Packing Cubes Set für mehr Platz im Koffer & Backpack - Packwürfel Packing Cubes Compression als Rucksack Organizer - Travel Packtaschen Reise - Camping Zubehör & Wander Ausrüstung packing cubes proved their worth. Compression pushes out the air and keeps everything flat. Not completely wrinkle-free, but absolutely fine for a business meeting.
Berlin by train. Backpack on my back, ticket on my phone, straight onto the ICE. No check-in, no waiting, no moment of wondering whether my bag ended up in the wrong city. That was probably the best moment of the whole trip.
Compression Packing Cubes Set für mehr Platz im Koffer & Backpack - Packwürfel Packing Cubes Compression als Rucksack Organizer - Travel Packtaschen Reise - Camping Zubehör & Wander Ausrüstung
Days 4 and 5: Where It Fell Apart
Day 4 caught up with me.
The dinner with a client's executive team. My suit still looked decent after three days, but "decent" is not "freshly pressed." I tried the steam trick at the hotel again. The result was mediocre. If you need to look impeccable at a formal dinner, you either need a second suit (impossible in carry-on) or a hotel pressing service (I thought of it too late, they needed 24 hours notice).
By day 4, I was out of clean underwear. I ended up hand-washing socks and underwear in the hotel sink that evening. Dried overnight on the radiator. It works, but it doesn't exactly signal polished business traveler.
And then: no room for gifts. The client handed me a thick product manual and two promotional items on Thursday. Where do those go? Not a millimeter of space left in my backpack. I stuffed everything into a paper bag and carried it separately. Not a great look.
Friday morning, heading home. I stood at 5:45 AM in the hotel room, damp socks on the radiator, suit roughly presentable. Was I proud of myself? A bit.
Would I Do It Again?
Yes. But not exactly like this.
For trips up to three days, a lean business trip packing list with carry-on only is completely doable. Five days was pushing it. The biggest win was time saved at the airport (Coming Soon). 70% of carry-on only travelers reach their gate in under 30 minutes, according to IATA. I can confirm that personally.
Anyone who wants to travel carry-on only for business needs clear rules for themselves, especially around formal dinners and multi-day trips.
What I'd change next time:
Book hotel pressing service the evening before, not the same morning
Pack one extra merino T-shirt (odor resistant means less washing needed)
Bring a lightweight cloth bag for potential gifts or documents
For trips over four days, plan for hotel laundry service or pack travel detergent
For weekend and multi-stop trips, we've also put together a detailed packing list for multi-stop short trips (Coming Soon).
If you're flying Ryanair without Priority (Coming Soon), by the way, you've got a completely different problem. They allow only 40 x 20 x 30 cm without it. No trolley fits, let alone a suit. Fines up to 80 euros in 2026 for wrong-sized carry-on. I'd rather pay a few euros for Priority.
For anyone looking for an honest business trip packing list: here are the four things that actually make the difference. Right suit fabric, shoulder-to-shoulder folding, merino base layers, and a plan for laundry from day 4 onward. My takeaway after five days? Business travel with carry-on only is not a myth. But it's not effortless either. I learned that. The hard way.