Start with departure, transfer and return airports
Liquid screening is set by airport security, not airline cabin dimensions. UK Government guidance says rules depend on the airport and directs travelers to check departure and every transfer airport, including the return journey. Many airports still cap containers at 100 ml, while some may allow up to 2 litres. Rules can differ even within one country.
Build a short list of every security checkpoint on the itinerary before filling bottles. Use each airport’s current official guidance; do not assume a transfer follows the first airport’s rule or that a round trip uses identical screening. If the official page says to confirm with the airport, follow that instruction rather than applying an airline’s general packing page.
| Trip point | Question to verify | Record |
|---|---|---|
| Departure airport | Container capacity and separate-bag rule | Official security page |
| Transfer airport | Transit screening or re-screening | Airport / authority guidance |
| Return airport | Current rule on return date | Official security page |
| Exceptions | Baby food, medicine, dietary liquids, duty free | Required evidence or sealing |
Classify toiletries by consistency, not product name
The GOV.UK liquids guidance includes drinks, creams, lotions, oils, perfume, mascara, lip gloss, sprays, pastes such as toothpaste, gels, contact-lens solution and similar substances. A solid bar cleanser is a different packing format from liquid body wash, but the airport’s own categories should decide any borderline item. A pump bottle or aerosol is not exempt just because it is a toiletry.
For a container limit, the printed container capacity matters: a 200 ml bottle that is one-quarter full is still a 200 ml container under the UK guidance. Choose smaller refillable containers only when they are clearly marked or otherwise acceptable to the checkpoint, and keep originals for products whose label or contents matter to you.
- Separate gels, creams, pastes and sprays from solid toiletries.
- Check aerosol rules separately if the airport page distinguishes them.
- Do not count a partly empty large bottle as a small container.
Pack for screening and prevent leaks
Where an airport requires a transparent resealable bag, UK guidance describes one bag up to a litre and approximately 20 × 20 cm; contents must fit and the bag must close. Not all airports require this. Follow the airport’s current instructions. As a practical step, tighten caps, wipe threads and place leak-prone bottles in a second sealed pouch.
Keep the screening bag near the top of your carry-on if you may need to present it. Put solid toiletries and an empty bottle elsewhere so a check does not scatter the kit. The printed capacity matters: a partly empty 200 ml container remains a 200 ml container under the UK guidance.
| Item group | Packing approach | Source rule vs. our method |
|---|---|---|
| Screening liquids | One clear resealable bag if required | Airport decides whether required |
| Leak-prone bottles | Second sealed pouch | Practical containment method |
| Solid toiletries | Separate dry pouch | Useful organization, not a liquid exemption |
| Larger products | Checked baggage if appropriate | UK guidance says pack liquids in hold if possible |
Check exceptions and duty-free handling separately
UK guidance describes exceptions for essential medical liquids, special dietary liquids and baby food or milk. Airport or aircraft duty-free liquids may pass security in a sealed security bag with the receipt visible. These are specific conditions, not general permission for large toiletries. Check the official details and carry any required packaging.
For an international connection, check whether the next security point recognizes the same duty-free scheme. Keep the receipt and seal intact until the relevant point. This is a packing workflow, not a guarantee that staff will accept a specific item; airport security makes the decision.
Sources and check dates
- UK Government overview of hand-luggage restrictions ↗Checked 2026-10-15 · Source published: not stated · Source updated: not stated
- UK Government liquids guidance ↗Checked 2026-10-15 · Source published: not stated · Source updated: not stated