Can You Put Liquids in Your Suitcase?
Can you put liquids in your suitcase for air travel?
The answer depends on whether your liquid is going in hand luggage or in hold luggage and what airport security expects you to do in the security area. Liquids in your hand luggage are typically limited by the 100ml rule, while checked baggage usually allows larger containers. With our cabin suitcase sized at 55 × 35 × 25 cm, you can plan your liquids in hand luggage around what will go through security without last-minute stress at the airport. If you are unsure about cabin sizing before you pack, check what size is a cabin suitcase to match your travel plan to the right luggage.
Baggage allowance basics: liquids in your hand luggage
For most UK airports, liquids in your hand luggage must be in containers of no more than 100 ml each, and they must fit inside one clear plastic bag. This is the rule that affects what can be taken through security, and it is why travellers often repack toiletries into a smaller container before they go to the airport. A common allowance is that the plastic bag should be about 20 cm x 20 cm, and it must close properly so it can be screened during security screening. If you want to avoid delays, keep your plastic bag for liquids near the top of your carry-on luggage so it can be taken out quickly to go through security.
In practice, this means your shampoo, skincare, and gel products should be in 100 ml containers even if the bottle is half full, because the limit is based on the container size. If you are traveling with our 55 × 35 × 25 cm cabin suitcase, the internal space is organized enough to keep that plastic bag separate from clothes, which reduces leaks and makes checks easier at airport security. Remember that security regulations can change, and some airports may introduce new security processes, but you should still pack as if the 100 ml rule applies unless your airport clearly states otherwise. Your airline may also have a separate hand luggage allowance, so always confirm your hand baggage allowance before you travel.
How to take liquids in containers through airport security with hand luggage
You can take liquids in containers through airport security by preparing them before you reach the security area, then presenting them clearly when requested. Put the liquids you can take into a single clear plastic bag, keep each container at 100 ml or less, and remove the bag from your hand baggage when you reach the trays. This helps you get through security faster and reduces the chance that security staff need to open your luggage. If you want a full packing routine that also prevents spills, use how to pack a suitcase as a step-by-step guide.
Restricted items: what you cannot take
Some liquids are classed as restricted items or dangerous goods, and these items are not allowed in either cabin baggage or checked-in baggage in many cases. A flammable liquid is a common example of a product that can trigger prohibited items rules, and it may be something you cannot take at all depending on the specific items and local security regulations. Even if something seems harmless at home, airport security may treat it differently if it is pressurised, reactive, or unclear, so it helps to keep original labels where possible. When in doubt, assume items are restricted and check your airline guidance before you travel.
Also remember that “liquids in hand” can cause confusion: if you carry liquid in your hand to the checkpoint without packaging it correctly, it is more likely to be stopped. Keep liquids in hand inside the clear plastic bag, not loose in pockets, and avoid carrying open drinks into the queue because you may be asked to dispose of them. If you are carrying electrical items and want to plan what goes where, see do electrical items go in hand luggage or suitcase to coordinate liquids and electronics smoothly. This is especially useful when you are trying to keep items on board organised and easy to access.
What is allowed in checked baggage?
For many travelers, the easiest way to pack liquids over 100 ml is to put them in the hold, because hold luggage and checked baggage rules are usually less strict for toiletries and drinks. In many cases, larger bottles are allowed in checked baggage, but you still need to pack liquids carefully to prevent leaks caused by pressure changes during the flight. Use sealed caps, consider placing each container in a separate bag, and keep liquids in containers away from items that absorb spills. If you are checking a bag, our medium suitcase at 67 × 43 × 25 cm is a practical choice for longer travel because it is sturdy polycarbonate, light to lift, and rolls easily through the airport.
When you put items like shampoo, conditioner, or larger dietary liquids in the hold, aim to keep them upright and cushioned by clothing. If you are carrying baby food, you may be allowed to take more in the cabin, but rules vary by airport and airline, so it is smart to have a backup plan by placing extras in hold baggage. Also consider your baggage allowance so you do not end up needing extra baggage at the last minute because liquids add weight quickly. If you are planning weight and size for a standard check-in limit, what size suitcase for 23kg can help you match your luggage to typical checked baggage needs?
Suitcase features for travel
Practical suitcase features make liquid packing easier, especially when you are switching between hand luggage and checked baggage across multi-leg travel. Our cabin suitcase and medium suitcase both include an integrated TSA lock, which is useful when your luggage is inspected, and it keeps your belongings secure while you move through busy airport areas. If you ever need to adjust the code after a trip, follow how to reset suitcase lock to keep your lock working smoothly. These details matter because a secure case reduces stress when you are carrying liquids, gadgets, and documents together.
It also helps to build smart luggage habits around electronics and liquids, because electronic devices often need to be separated at security screening, while liquids need to be presented in a clear bag. Keep your liquids away from items powered by lithium batteries, and avoid packing anything that must be drained of all liquid unless you have confirmed the rules for that item. If you are bringing reusable bottles, make sure they are empty before the checkpoint, because an open bottle can slow you down at the airport. With organized luggage and a predictable packing layout, you can move from check-in to boarding with fewer interruptions.
Choose your luggage for liquids, baggage, and travel
If you want to travel with fewer mix-ups at the airport, choose a suitcase that matches how you plan to pack liquids and how you prefer to move through terminals. Our collection includes a 55 × 35 × 25 cm polycarbonate cabin suitcase; a 67 × 43 × 25 cm polycarbonate medium suitcase for checked baggage; and multiple kids’ luggage options, including polycarbonate and a transparent PVC and polyester design. With over 1,200 unique designs and the option to personalize with a photo, name, or initials, your luggage is easy to spot and less likely to be confused at baggage claim. Pick the size that fits your hand luggage allowance or hold luggage needs, then make it unmistakably yours.
At many UK airports, you are expected to use a clear plastic bag for liquids, and each liquid container should be 100 ml or less. A common size is around 20 cm x 20 cm, and it should seal properly for airport security checks.
Baby food and dietary liquids are often treated differently, and you are allowed to take more than the standard allowance in some cases. If medicine is a liquid, it is commonly allowed, but you may need to show it separately during checks.
Items you buy after the checkpoint are usually allowed as items on board, often sealed in a security tamper-evident bag. Keep the receipt and do not open the bag until you reach your destination, especially when connecting.
Finish it or dispose of it before you enter the security line, because loose liquid in your hand may be stopped. Keeping liquids packed correctly helps you get through security without delays.
Rules are broadly similar across UK and EU airports, but local procedures and new security rollouts can differ. If you are flying from London Gatwick or other airports in the UK, check the airport’s latest guidance on luggage restrictions at UK airports before you travel.