What to Pack for a Week-Long Summer Holiday (Using Only a Carry-On)

Travelling light is a skill – but it’s also freedom. No baggage carousels. No lugging heavy cases down cobbled streets. No checked-luggage anxiety at the airport gate.

Whether you’re a solo traveller, single mum, or just someone who’s done overpacking one too many times (hi, same), this guide is your answer to packing everything you actually need for a summer holiday – using just a carry-on cabin bag.

This isn’t a theoretical “capsule wardrobe” post either – this is what I personally pack for one-week trips across Europe in summer. From city breaks to coastal escapes, this list keeps things light, functional, and confidence-boosting, with zero compromise on style or comfort.

Why Pack Carry-On Only?

Aside from the obvious (saving money and time), packing light lets you:

  • Move freely: Through narrow streets, steps, and transport

  • Avoid waiting: At baggage claim or dealing with lost luggage

  • Feel in control: When travelling solo or with a child

  • Travel stress-free: Especially if you have mobility or health considerations

Once you try it, you won’t go back.

The Carry-On Packing List for a 7-Day Summer Trip

I always pack by outfit. It honestly saves an incredible amount of space and stress, and ensures that I actually wear what I pack! However, if you’re someone who still likes to pack separates and mix & match when you’re there, here’s exactly what should go into your cabin-size backpack.

Nothing more, nothing less.

Clothing (Wear More, Pack Less)

Wear on the plane:

  • Lightweight trousers or loose joggers

  • T-shirt or tank top

  • Light jumper or cardigan

  • Comfortable trainers or closed shoes

  • Crossbody bag (I use this one!) with passport, phone, and essentials

In the bag:

  • 3 x tops (vests or short-sleeve shirts)

  • 2 x shorts or skirts

  • 1 x midi or maxi dress

  • 1 x lightweight cover-up (shirt or kimono)

  • 1 x swimwear (or 2 if you’ll be in the water daily)

  • 1 x sleepwear

  • 1 x packable rain jacket

  • 1 x sandals or flip flops

  • 1 x spare bra + 4–5 pairs of underwear

  • 1 x pair of socks (if you’re mostly in sandals)

If you’re travelling somewhere conservative or planning any church/temple visits, swap one of the tops for something with sleeves and bring one outfit that covers knees/shoulders.

Accessories That Work Overtime

Skip the heavy jewellery and “maybe” extras. Bring one or two pieces you love — and wear them daily.

Toiletries (Keep It TSA-Friendly)

Stick to under 100ml containers and group them in one clear bag. Most of what you need will fit if you go minimal. I actually normally buy most of my toiletries when I arrive in the country I’m visiting, so I’ve made a note below of which I usually do this with.

  • Sun cream (face and body) – Buy there (sun cream always seems to work better when you buy it in the country you’re visiting!

  • Moisturiser – Buy a mini there

  • Deodorant – Buy a mini there

  • Shampoo/conditioner bar or travel minis – Most hotels tend to supply these

  • Toothbrush + paste – Buy a mini toothpaste there

  • Razor (manual only for carry-on) – Buy there as most airlines won’t let you take a razor on board the plane cabin

  • Face wash or micellar water + cotton pads – Buy a mini there (I get scared mine will leak into my bag on the plane!)

  • Period products (if needed)

  • Lip balm, hair tie, small brush or comb

  • Minimal makeup (tinted moisturiser, mascara, brow gel, tinted lip balm)

As mentioned above, if your accommodation provides hair dryers or soap, skip those items.

Tech + Essentials

  • Phone + charger

  • Plug adapter (if going abroad)

  • Power bank

  • Headphones

  • Copy of passport/ID (printed + digital)

  • Credit/debit card and some local cash

  • Travel insurance details

  • Medications (in labelled containers)

Optional: Kindle, small notebook and pen, packing cubes (these save space and stress)

How to Pack It All (So It Fits)

You don’t need packing cubes, but they help keep things tidy. Otherwise, here’s how to get the most out of your space:

  • Roll your clothes to avoid creases and save room

  • Wear your bulkiest items (like trainers and jacket) on the plane

  • Use shoes to store socks or small items

  • Stick to one colour palette so you can mix and match everything

What I Don’t Pack Anymore (And Why You Shouldn’t Either)

Hair straighteners. It’s hot, you’ll sweat. Embrace the wild waves.
“Just in case” outfits. If you haven’t worn it at home recently, don’t pack it.
More than one book. You’re either reading or you’re not. One Kindle or one paperback.
Bulky beach towels. Grab one from your hotel or use a compact travel towel.
Multiple shoes. If they don’t serve a different purpose, leave them.

You’ll Still Look Great

Here’s the thing: packing light isn’t about dressing boring. It’s about feeling free to move through airports, streets, and spontaneous adventures without being weighed down — physically or mentally.

It’s about choosing comfort and confidence.

If you’ve ever felt overwhelmed by packing or told yourself you need to buy a whole new wardrobe just to go on holiday — trust me, you don’t.

Bonus Tip: Pack One “Power Outfit”

This is the outfit that makes you feel totally yourself — whether that’s a dress you love, a bold jumpsuit, or a co-ord you can throw on and go.

You’ll wear it more than once, and it’ll show up in half your travel photos. Choose wisely — and wear it proudly.

Final Thoughts

Packing for a week-long summer trip in just a carry-on is completely doable, and genuinely freeing. You’ll have everything you need and nothing you don’t.

More importantly, you’ll feel capable, organised, and ready for anything your trip throws at you, whether that’s a surprise boat tour, a cliffside dinner, or just navigating unfamiliar streets with ease.

And when you realise how little you actually need to travel well, you’ll start to wonder why you ever packed so much before.