Carry-On Packing Checklist: What to Keep With You (in Case Your Bag Doesn't Arrive)

Most luggage problems are solved by what’s in your carry-on. If your checked bag is delayed — the most common baggage issue — the right carry-on turns a disaster into a minor inconvenience. Here’s a complete carry-on packing checklist, built around one question: what would I need if my suitcase didn’t arrive?
The short answer
Your carry-on should hold everything you can’t afford to lose or be without: documents, money, medication, electronics and chargers, valuables, keys, and a 24-hour kit (change of clothes, basic toiletries within liquid rules). Never put valuables, important documents, medication or spare lithium batteries in checked luggage.
The carry-on checklist
Documents and money
- Passport / ID
- Boarding pass (and digital copy)
- Visas and travel documents
- Travel insurance details
- Bank cards and some local currency
- Copies of important documents (stored separately)
Health
- Prescription medication (in original packaging where possible)
- A copy of your prescription
- Glasses or contact lenses
- Basic painkillers and plasters
Electronics
- Phone and charger
- Laptop or tablet
- Power bank (carry-on only)
- Headphones
- Travel adaptor
Valuables
- Jewellery
- Camera
- House and car keys
24-hour survival kit
- Underwear and socks
- A clean T-shirt
- Toothbrush and travel-size toothpaste
- Deodorant and travel-size toiletries
- Any essentials for kids (nappies, snacks, comfort toy)
What never goes in checked luggage
| Item | Why |
|---|---|
| Valuables and jewellery | Often excluded from airline liability |
| Electronics | Risk of damage, loss and theft; often excluded |
| Medication | You may need it before your bag arrives |
| Passport and documents | You’ll need them at arrival |
| Spare lithium batteries and power banks | Usually required to be carried in the cabin |
| Keys | You won’t get home without them |
Compensation limits and exclusions are covered in lost luggage compensation explained.
TagTrek turns any item into a smart QR tag. If it's lost, whoever finds it can reach you in seconds — no app, no account, no GPS tracking.
Liquids rules
Liquid limits vary. Many airports still apply limits on liquid containers in hand luggage, while some airports with newer scanners have relaxed them. Rules can also change at short notice — check your departure airport’s website before packing.
Pack smart
- Use a pouch for documents so you can find them fast.
- Keep medication and chargers at the top.
- Put valuables in an inner compartment you can see.
- Label your carry-on too — bags get left at gates, lounges and security. How to make your luggage stand out.
If your checked bag is delayed
With the right carry-on, you’re covered for the first day. Report the delay at the airport, buy only essentials and keep receipts. Delayed baggage: what to do and claim.
Don’t forget your carry-on
Carry-ons are some of the most commonly forgotten items: in overhead bins, at security, in lounges, in taxis. Do a quick “phone, passport, wallet, bag” check every time you move.

The bottom line
Pack your carry-on as if your checked bag might not arrive: documents, money, medication, electronics, valuables, keys and a 24-hour kit. Keep valuables and batteries out of checked luggage, and check liquid rules before you fly.
Tag your carry-on as well as your checked bag. With TagTrek, a printed QR tag on the handle means anyone who finds your bag at the gate, in a lounge or on the plane can scan it and contact you — no app needed — while Traveling mode keeps your home details hidden.
Frequently asked questions
What should always go in my carry-on?
Passport and travel documents, money and cards, medication, electronics and chargers, valuables, keys, and a change of clothes and toiletries for at least 24 hours.
What shouldn't I put in checked luggage?
Valuables, jewellery, electronics, important documents, medication and spare lithium batteries. Many airlines exclude valuables from liability, and spare lithium batteries must usually go in the cabin.
How much liquid can I take in my carry-on?
Rules vary by country and airport, and some airports with new scanners have relaxed limits. Check your departure airport's current rules before you pack.
Why pack a change of clothes in my carry-on?
If your checked bag is delayed, you'll have what you need for the first day while the airline returns it.
Never lose your bag again
TagTrek turns any item into a smart QR tag. If it's lost, whoever finds it can reach you in seconds — no app, no account, no GPS tracking.
See how TagTrek works →