Yes, you can take liquids in a carry-on if each container is 100 ml or 3.4 oz and all of them fit in one clear quart-size bag.
Many travellers type “can you take liquids in a carry-on?” into a search bar before packing. Nobody wants a favourite product tossed at security. This guide sets out the liquid limits, packing steps, and main exceptions so you can move through the checkpoint with less stress on most standard routes worldwide.
Taking Liquids In Your Carry-On Bag: Core Rules
Most airports follow a similar pattern for liquids in cabin baggage. The idea is simple: small amounts in small bottles inside one clear bag per person. In the United States this pattern is known as the “3-1-1” rule, and many other regions apply almost the same limit even if they use different names.
Under the usual rule, each liquid container in your carry-on must be 100 millilitres or 3.4 ounces or less, and all of those containers must fit comfortably inside a single, clear, resealable plastic bag with a capacity of about one litre. Security staff often ask you to place that bag in a separate tray so the x-ray image is easy to read.
| Liquid Type | Standard Carry-On Limit | Notes |
|---|---|---|
| Water, soft drinks, juice | Up to 100 ml per container | Larger bottles must go in checked baggage or be bought after security. |
| Shampoo, conditioner, shower gel | Up to 100 ml per container | Refillable travel bottles work well for these toiletries. |
| Toothpaste, face wash, lotions | Up to 100 ml per container | Counted as liquids or gels even if they feel thick. |
| Perfume and cologne | Up to 100 ml per container | Small spray bottles are easier to pack. |
| Hairspray, deodorant sprays, other aerosols | Up to 100 ml per container | Airlines may cap the total amount of aerosols in cabin and checked bags. |
| Makeup items like liquid foundation or mascara | Up to 100 ml per container | Powder makeup does not count as a liquid. |
| Contact lens solution | Up to 100 ml per container in most cases | Larger medical bottles may be allowed outside the limit with checks. |
| Liquid medicine and syrups | Reasonable amount for the trip | Often exempt from the 100 ml limit but may need screening or proof. |
The fine print still matters. Limits can shift between regions, and some airports now use scanners that allow bigger bottles. Pack as if the 100 millilitre rule still applies unless your departure airport clearly states something different on its security page.
Can You Take Liquids In A Carry-On? Common Exceptions
The cabin liquids question does not have a single answer for every item. Some liquids follow different rules because of health needs, babies, or where you buy them.
Medication And Medical Liquids
Most countries treat liquid medication more flexibly than normal toiletries. You can usually bring more than 100 millilitres if the amount matches your trip, and officers may ask to see a prescription or run extra screening. In the United States, the Transportation Security Administration confirms these allowances in its official guidance on the liquids, aerosols and gels rule, which also restates the 3.4 ounce limit for standard travel-size products.
Baby Food, Formula, And Breast Milk
If you are travelling with a baby or young child, liquid food, sterilised water, and milk for that child can usually exceed the 100 millilitre cap. Officers may open containers or ask you to taste a small sample, and they may run extra checks on the bottles. Pack these items in a way that makes them easy to lift out during screening.
Duty-Free Purchases And Security Bags
Large bottles of perfume, wine, or spirits bought after the security checkpoint follow a different pattern. Shops often pack these items in sealed, tamper-evident bags with a receipt. As long as the seal stays intact until your final destination, security teams on later connections usually allow those bottles through even if the container size is far above 100 millilitres.
What Counts As A Liquid At Airport Security
Plenty of items look solid enough at first glance yet count as liquids under security rules. A simple test many authorities use is this: if the item can pour, spread, pump, spray, or smear, it probably goes in the liquid bag.
- Drinks such as water, juice, soda, and ready-to-drink coffee.
- Spreadable foods like peanut butter, soft cheese, and chocolate spread.
- Gels and pastes including hair gel, styling wax, and toothpaste.
- Liquid cosmetics such as nail polish, liquid foundation, and lip gloss.
- Aerosols like deodorant spray, hairspray, and shaving foam.
- Roll-on deodorant, as it behaves like a liquid on the skin.
- Liquid mixes for e-cigarettes and refill pods.
Solid bars, sticks, and powders do not count as liquids as long as they hold their shape in normal conditions. Swapping to solid shampoo, conditioner bars, or stick deodorant reduces the number of bottles in your quart-size bag and leaves more space for items that have to be in liquid form.
How To Pack Liquids In Your Carry-On Step By Step
A little planning before you zip your suitcase keeps security smoother and lowers the chance of losing things. Place every liquid item either in your hand luggage bag, in checked baggage, or back at home before you head for the airport.
Choose Travel-Sized Containers
Start with liquids you use every day: shampoo, conditioner, body wash, face cleanser, moisturiser, and hair products. Decant only what you need into small bottles under the 100 millilitre mark. Many travellers reuse hotel bottles or buy a refillable set for cabin baggage, then label each container so you do not mix up products.
Build Your Quart-Size Liquids Bag
Lay all your liquid and gel containers out on a flat surface. Group them by type: toiletries, makeup, medical items, and small extras like eye drops or hand sanitiser. Place the containers inside a clear, resealable plastic bag of around one litre. The European Union describes this limit on its official luggage restrictions page, which also states that containers over 100 millilitres belong in checked baggage instead.
Sample Packing Plans For Liquids
Different trips call for different packing styles. A weekend city break with only a backpack needs less than a two-week beach holiday with checked luggage. The table below gives ideas you can adapt to your own habits.
| Trip Type | Liquids To Keep In Carry-On | Liquids Better In Checked Bag |
|---|---|---|
| Weekend city trip with cabin bag only | Travel shampoo and conditioner, face wash, liquid dental items, small perfume, basic makeup. | Large hair-product bottles and full-size skincare. |
| Business trip with meetings | Hair styling product, light fragrance, makeup basics, contact lens solution, small mouthwash. | Spare full-size toiletries in checked baggage. |
| Beach holiday with checked suitcase | Travel sunscreen for the first day, lip balm with SPF, after-sun gel in small tube. | Large sunscreen bottles, aloe gel, family-size shower products. |
| Long-haul flight with overnight stop | Toothpaste, moisturiser, facial mist, eye drops, basic medicine for the flight. | Bulk liquids like big lotion bottles and spare medicine packs. |
| Trip with baby or toddler | Measured portions of formula, baby milk, small bottles of baby wash and cream. | Spare large packs of formula, full-size baby toiletries. |
| Hiking or camping trip | Travel-size biodegradable soap, small insect repellent, compact sunscreen. | Bulk insect repellent and stove fuel that may face extra rules. |
| Carry-on only with strict airline size rules | Multi-use products such as combined shampoo and body wash, all liquids in one small pouch. | Anything you can replace at your destination. |
Keep Risky Liquids Out Of Your Cabin Bag
Some liquids and related items trigger extra checks or face outright bans in hand luggage. Examples include flammable liquids, fuel for camping stoves, bleach, and strong cleaning products. These often belong in neither cabin nor checked baggage, so read airline rules and security advice before you pack them.
Handling Special Situations And Changing Rules
Liquid rules are no longer identical at every airport. Some hubs have installed advanced scanners that can screen larger bottles inside cabin bags and now allow containers up to two litres without the classic plastic bag. Others still apply the 100 millilitre and one-litre bag rule and remove anything larger from hand luggage.
Many European airports still follow the 100 millilitre rule described by the European Union, while a growing group with new scanners relax bag and bottle limits. Change is gradual, so travellers need to check the rules at each airport on a trip.
Connecting Flights With Mixed Liquid Rules
If your trip includes a layover, treat each security checkpoint as its own gatekeeper. A bottle allowed at your starting airport might not pass at the connecting one, especially if you change regions. This matters most when you buy drinks or duty-free liquor during the first leg and then face screening again before boarding the next flight.
When Security Wants A Closer Look
Sometimes security officers pull a bag aside for a manual check when the x-ray image shows an unclear liquid bottle or a crowded pouch. Stay calm, answer questions briefly, and let the officer inspect the items. If an item breaks the liquid rules, you normally have three choices: discard it, move it to checked baggage if you have access, or in rare cases return landside to hand it to someone who is not flying.
Once you understand how the limits work, can you take liquids in a carry-on? In most cases the answer is yes when each bottle stays at or under 100 millilitres, everything fits inside one clear bag, and larger or special liquids follow the rules for medicine, baby needs, and duty-free purchases.