What to Pack for Europe in a Carry-On: The Summer Family Guide

I’ve done it. Two kids, two weeks in Europe, one carry-on each plus a personal item — no checked bags, no $75 fees, no waiting at baggage claim while your 4-year-old melts down near the carousel. The first time I pulled this off, we were heading to Spain and Portugal with a 9- and 4-year-old. I was nervous. By the time we landed in Madrid with everything we needed and nothing we didn’t, I was converted. So much so that I did it again for a four week trip to Italy that included big cities, hiking, and beaches. If you’re trying to figure out what to pack for Europe in a carry-on this summer, this is the post I wish I’d had — with real product picks, a realistic clothing formula, and the specific adjustments you need to make when you’re packing for kids too.

Summer is the easiest season to attempt carry-on only. No coats, no heavy wool, no boots. Lighter fabrics compress better, dry faster, and take up less space. If you’re ever going to try this, do it now.

Is this for real?!

All I brought for 3-weeks in Portugal and Spain…

Start With the Right Bag

Your Europe carry-on packing list is only as good as the bag you’re filling. I use the Away Bigger Carry-On (22″ x 14″ x 9″) — it fits in most overhead bins on major European carriers and maxes out the allowed dimensions without going over. If you prefer soft-sided, the Cotopaxi Allpa 35L is the one I’d buy next. This is the exact bag I have and I can fit myself and one child in there. Both are worth the investment.

For your personal item — which is where a lot of the flexibility lives — I use a structured tote that fits under the seat. The Lo & Sons Catalina Deluxe is expensive but worth it; the Béis The Work Tote is a strong mid-range option. Your personal item is where your crossbody, kids’ snacks, and anything you’ll want in-flight lives. Don’t waste it on a backpack that can’t hold its shape.

For each kid, I pack a small backpack as their personal item. At ages 5 and 10, they each carry their own: Pottery Barn Kids Mini Mackenzie. This is non-negotiable — every person carries their own weight. I love these backpacks and they double as their school backpack too so its cost efficient!

The Clothing Formula (Adults)

The goal is 10 days to 2 weeks in Europe from a carry-on. Dresses are your secret weapon here — one item, complete outfit, no coordination required, and midi and maxi lengths mean you can walk into any church in Europe without scrambling for a cover-up.

Dresses: 3 Before heading to Europe for 3-4 weeks my hairdresser told me she went on a trip and only brought dresses and truly that tip has been life changing. Go midi or maxi length. A dress that hits below the knee is your most versatile item — it works for a nice dinner, a full day of sightseeing, and passes the knee-covering requirements at religious sites without any add-ons. This is your key to packing in a carryon!

Hill House Nap Dress – the last two summers we’ve spent in Europe and 2 out of my 3 dresses have been from Hill House. The smocking make them comfortable, the midi length means they are church appropriate, and the cotton means you can wash them if you have laundry access. Wins all around! If you are into matching your kids, they also make adorable girls sized dresses.
Banana Republic Midi Dress in Linen — packs flat, wrinkle-resistant, works with sandals or sneakers
Quince Tencel Maxi Slip Dress — under $60, photographs beautifully, feels expensive
Reformation Midi Dress — the splurge option; if you’re going to spend money on one piece for a Europe trip, this is it. The linen and Tencel styles pack particularly well.

Three dresses covers you for most of the trip. Everything else fills gaps.

Bottoms: 2 One pair of shorts, one linen pant. That’s it.

Athleta Wayfind High Rise Short— elevated enough for a casual lunch, comfortable enough for a long walking day
Quince Pull-On Straight-Leg Pant in Linen Blend — wrinkle-resistant, packs well, goes with everything. Wear these on the plane so they don’t take up space in your bag.

Tops: 3–4 Two to three sleeveless tops plus one white linen button-down.

Quince 100% Linen Sleeveless Top (2) — neutral colors, mix with the shorts, the linen pant, or layer under the button-down on cooler evenings
Amazon Essentials Sleeveless Tank — honest: these are $12, they wash and dry overnight, and they hold up. Buy two backup colors.
Quince Classic-Fit Linen-Cotton Shirt in White — this is a workhorse. Wear it open over a sleeveless top, buttoned with the linen pant, or tied at the waist over a dress for a different look. One white linen shirt does more work than any other single item in your bag. It can even double as a beach coverup. And should if you are trying to pack light!

Layer: 1 A lightweight cardigan, not a sweatshirt. You want something that looks intentional over a dress for a cooler evening, not something that reads as gym wear.

Quince Lightweight Cashmere Cardigan — under $100, packs to nothing, elevates every outfit
Vuori Boyfriend Cardigan — less expensive, still photographs well
Your packable rain jacket lives in your personal item and does not count toward this — it’s your bad weather backup, not your evening layer.

Shoes: 2 pairs This is where the formula gets ruthless and you should trust it. I remember googling before our trip to Europe ‘chic sneakers that European girls wear but are comfortable’ and I came across a reddit comment that read, ‘don’t stress about it, everyone knows you are American’. Boy did that resonate. If you are trying to pack in a single carryon and you are planning intensive sightseeing days you are going to have to sacrifice fashion when it comes to your shoes. I’ve worn On Clouds two years in a row and typically average 10 miles or more walking a day. I’ve linked my exact pair. My favorite thing about this pair is that they are neutral so they blend in instead of standing out and drawing more attention to your footwear.

Sneakers — wear these on the plane. My personal recommendation are On Clouds. But if you are set on a more fashion forward pair then go with New Balance 574 or Golden Goose Ball Star if budget allows. These are your all-day walking shoes.
One shoe that works for dinner — a leather sandal with a heel or a ballet flat. The Margaux Ballet Flat is the gold standard for this. Sam Edelman Felicia is the budget version. Reformation Sonoma Heeled Sandal if you want something that photographs well and still walks reasonably on cobblestones.

That’s it. Two pairs. The dresses and the dinner shoe do the heavy lifting — you do not need a third option. If you have a beach portion to your trip planned I’d switch the dinner shoe out for a sandal that can dressed up or worn at the beach. I personally love the Eleftheria Jelly sandal by Ancient Greek sandals for this.

The Clothing Formula (Kids)

Girls Same philosophy as adults: dresses and skirts that do double duty are more efficient than separate tops and bottoms, but mix-and-match separates give you more outfit combinations from fewer pieces.

2–3 skirts in complementary colors (one floral, one solid) — Boden Cotton Skirt and Hanna Anderson Pull-On Skirt are the workhorses here
3–4 tops that go with every skirt and can be worn alone on hot days — Crewcuts Fitted Tank and JCrew Factory Eyelet Trim Tank cover casual to dressed-up
1–2 dresses that work for nicer dinners — Boden Sun Dress packs flat, doesn’t wrinkle, and photographs beautifully. Buy this.
1 light cardigan or zip layer for evenings and cold flights
Shoes: sneakers plus one sandal. Birkenstock Arizona Kids if they’ll wear them, Stride Rite for younger kids who need more support.

Boys Neutral shorts that go with every shirt. This is not complicated, do not make it complicated.

3–4 neutral shorts (navy, khaki, olive, grey) — J Crew Factory Pull-On Shorts in tech material are my absolute favorites and the only shorts I buy for my son now. The are moisture wicking and dry up overnight but also look so polished.
4–5 tops in colors that work with all of the shorts — avoid graphics if you want flexibility; a graphic tee only goes with one look. I love these basics from J Crew Factory. It really is my go to for boys!
1 button-down shirt for nicer dinners — I’m sure you know where I’m buying these by now! J Crew Factory’s performance polos are perfect. They dress up easily and the material dries overnight.
1 light zip layer. Performance wear means you can wash and hang dry in a bathroom overnight.
Shoes: sneakers and one sandal. Birkenstock Gizeh for older kids, Teva Hurricane for younger kids who need straps.

I’m not kidding when I say these performance fabrics from JCrew Factory are workhorses for little boys!

Packing Cubes: Non-Negotiable

If you are trying to figure out what to pack for Europe in a carry-on without packing cubes, you are making this harder than it needs to be. Packing cubes are what make the formula work.

Away Packing Cubes Set — fits their carry-on sizes perfectly, compresses well
Amazon Basics Packing Cubes — if you want to test the system before committing, these work. I’ve used both and honestly I think a budget option is more than enough for packing cubes.
Calpak Packing Cubes — mid-range, good quality, more color options

System: one cube per person. This also works great if you are doing a multi-bedroom suite or adjoining rooms. It makes it so easy to divide up your suitcase.

Toiletries and Liquids

This is where most people get tripped up. TSA 3-1-1 rules apply: liquids in containers 3.4oz or less, in one quart-size bag.

What I actually bring:

Sunscreen in a 3oz refillable tube — Supergoop Unseen Sunscreen comes in travel size and is worth every penny in summer
Solid shampoo bar (HiBar) and solid conditioner — eliminates your two biggest liquid items. Or just rely on getting this from hotels.
Nécessaire Body Wash travel size or a solid bar alternative
Moisturizer in a small jar — refill your daily moisturizer into a Mrsdry travel container
Toothpaste and any prescriptions count toward your liquids

Buy a full-size sunscreen when you arrive if you’re staying more than a week. European pharmacies are well-stocked and it frees up your liquid bag.

The Crossbody — Your Daily Bag

Do not bring a large bag for daily use in Europe. Pickpocketing is real, cobblestones make rolling bags miserable, and a large tote signals tourist from a hundred meters away.

My daily bag is a small crossbody that fits my phone, cards, lip gloss, a snack, and nothing else.

Calpack Belt Bag — holds everything, comes in a ton of colors, and photographs well.
Clare V Mini Belt Bag— the splurge option, worth it if bags are your thing
Amazon Belt Bag by LOVEVOOK — $25, surprisingly good, great for beach days where you don’t want to risk the nice bag

What to Wear on the Plane

This is essentially a free outfit that doesn’t come out of your packing formula.

I wear: linen pants (one of my three bottoms), a comfortable top, my sneakers, and carry the packable rain jacket. A matching athleisure set can look very chic as well and translate to sightseeing outfits. My personal item holds my crossbody, kids’ snacks, a slim laptop, and one change of clothes for the youngest in case of a spill.

Do not wear jeans on a transatlantic flight if you can avoid it. Do not wear athletic wear that you aren’t going to use for the rest of your trip. The linen pants solve both problems.

What to Pack for Europe in a Carry-On: The Complete List

Adults (per person):

3 bottoms
5–6 tops
1 dress or versatile outfit
1 packable layer
3 pairs of shoes
7 days of underwear + 1–2 extra
7 pairs of socks
Swimsuit (doubles as workout top if needed)
Toiletry bag (3-1-1 compliant)
Packing cubes
Travel-size laundry soap (Scrubba Wash Bag if you want to hand-wash)

Per kid:

5 tops
3 bottoms
1 dress or nicer outfit
1 light layer
2 pairs of shoes
Underwear + 2 extra
Swimsuit

The Europe carry-on packing list above assumes you’re doing laundry once or twice on a trip longer than 10 days. Most mid-range to luxury hotels will do laundry or have a coin laundry available. It may sound gross but on our 3-week European vacation I didn’t do laundry a single time. If one of the kids stained something I would wash it in the bathroom sink or take it out of rotation for the rest of the trip. Pack light soap tablets if you plan on doing wash in your bathroom.

One Thing That Will Ruin Your Carry-On Plan

Buying things. Every market, every boutique, every souvenir your kids beg for. Pack one packable tote in your personal item — Baggu Standard Bag folds to nothing — and use it as your shopping bag. If you buy enough to need a checked bag on the way home, most airlines will let you add one at the gate for less than booking it in advance. This is a known strategy and not a failure of planning. And you may find you don’t need it. As a mom, I frequently pack things that I know we’ll use while on our trip that free up suitcase space. Example: diapers. If you take stock of that space before you leave you’ll know exactly how many souvenirs you can buy.

A Note on Summer Specifically

Summer in Europe means heat. Southern Europe — Spain, southern Italy, Portugal — can hit 95°F+ in July and August. Linen and light cotton are not optional, they are the only fabrics that make this bearable. Avoid anything synthetic that doesn’t breathe. Avoid dark colors for daytime unless you’re specifically packing for photos and will be air-conditioned most of the day. Even then I would say avoid black as it can read very harsh in photos. I’ve listed some of my favorite photo packing tips here.

Northern Europe — Germany, Austria, the UK — runs cooler and you’ll want that packable layer more than you think. Just check your weather before you go. We visited both Germany and Austria in June during a heat wave and didn’t need a single layer.

Knowing what to pack for Europe in a carry-on is half the battle — executing it the first time takes real restraint. The second time, you’ll wonder why you ever checked a bag.