Roberta Aguirre
Liquids are permitted through airport security, but only in limited quantities. Most airports allow liquids in hand luggage as long as they are in containers of 100ml or less and fit in a clear, resealable plastic bag. This includes beverages, suntan lotion, fragrances, cosmetics, and toiletries. Liquids purchased at duty-free shops may be allowed in larger quantities if sealed in a security tamper-evident bag with a receipt inside. Medications, baby formula, and breast milk are usually exempt from the liquid restrictions and can be carried in larger quantities. It's important to check with the relevant airlines and airports before travelling, as rules may vary.
| Characteristics | Values |
|---|---|
| Container size | Liquids must be in containers of 3.4 oz or 100 ml or less |
| Bag type | Liquids must be carried in a clear, resealable plastic bag |
| Bag capacity | The bag must be no more than 1L in capacity |
| Bag quantity | Only one bag of liquids is allowed |
| Screening | Liquids that alarm during screening will require additional screening |
| Duty-free liquids | Duty-free liquids in secure, tamper-evident bags are allowed if purchased internationally and traveling to the US with a connecting flight |
| Medication | Prescription medication is allowed and should be clearly labeled |
| Baby food/drink | Baby food, milk, liquid formula, water, and juice are allowed in quantities greater than 100 ml for infants younger than two years |
| Breast milk | Breast milk is allowed in quantities greater than 100 ml |
| Food | Food over 100 ml that is normally a liquid or gel but has been frozen solid is not allowed in carry-on luggage |
| Food in checked baggage | Both solid and non-solid food (over 100 ml) can go in checked baggage |
| Alcoholic beverages | Alcoholic beverages can be packed in checked baggage if the percentage of alcohol by volume is 70% (140 proof) or less |
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What You'll Learn
Liquids under 100ml are allowed
Liquids in containers of 100ml or less are allowed through airport security. This includes beverages, suntan lotion, fragrances, cosmetics, toiletries, and frozen liquids. All containers must fit inside a clear, closed, and resealable one-litre plastic bag. This bag must be separate from your carry-on baggage.
If you are travelling with a child under two years of age, you can bring baby food, milk, liquid formula, water, and juice in quantities greater than 100ml. Breast milk can also be carried in quantities above 100ml, but it must be stored in a clear, transparent container or bag with a volume of no more than two litres.
Prescription and essential non-prescription medicines are also exempt from the 100ml rule. This includes pain-relieving medication, cough syrup, decongestant spray, gel-based nutritional supplements, saline solution, and eye care products.
Duty-free liquids can be carried in your hand luggage if they are sealed inside a security bag with the receipt sealed and visible. The bag must remain sealed until you reach your final destination.
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Medication is allowed
If your medication is in pill form, it will go through the standard X-ray screening process. In this case, it is possible that a TSA officer may ask you about your medication, especially if it is considered a controlled substance. Keeping a detailed list of your medications on your phone or in a pocketbook can be helpful in this situation. You can also request a visual inspection instead of X-ray screening, but this request must be made before your medication has begun going through the X-ray on the conveyor belt.
Additionally, you are allowed to bring ice packs on your flight to keep your medication properly cooled, as long as you declare the ice packs during screening.
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Baby formula is allowed
Liquids, gels, and aerosols in containers larger than 3.4 ounces (100ml) generally need to be packed in checked baggage. However, baby formula is considered a medically necessary liquid and is therefore allowed in carry-on baggage in quantities greater than 3.4 ounces (100ml). This also applies to breast milk, toddler drinks, and baby/toddler food, including puree pouches.
You should inform the TSA officer at the beginning of the screening process that you are carrying baby formula in excess of 3.4 ounces (100ml). Remove these items from your carry-on bag so they can be screened separately from your other belongings. It is helpful to the officers when formula is in clear, translucent bottles and not plastic bags or pouches.
Ice packs, freezer packs, frozen gel packs, and other accessories required to cool formula are also allowed in carry-ons. These items are subject to the same screening as formula and other liquids. If they are partially frozen or slushy, they will be subject to additional screening.
Duty-free liquids are also allowed in carry-on baggage if they are sealed inside a security bag when purchased, and the receipt is sealed in the bag and visible.
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Duty-free liquids are allowed
When purchasing duty-free liquids, it is important to ensure that they are placed in a secure, tamper-evident bag. This bag should remain sealed until you reach your final destination. Some countries, like the United States, do not accept the ICAO tamper-evident bag at their checkpoints. In such cases, travellers are advised to wait until they reach their destination to purchase duty-free liquids or to buy them after passing through security.
If you are travelling internationally with a connecting flight, it is generally recommended to purchase duty-free liquids on the last leg of your trip to avoid any issues with security checkpoints. This is especially important if your connecting flight is in a country that does not accept the tamper-evident bag, such as the United States or Japan. By waiting until your last connection to make your duty-free purchases, you can ensure that you comply with the regulations of your final destination.
To protect valuable duty-free liquids, such as expensive liquor or perfume, it is advisable to take extra precautions. Wrapping the bottles in a thick layer of bubble wrap or towelling and placing them in a box within your suitcase can help prevent breakage and ensure their safe arrival at your destination. Additionally, keeping such items in your carry-on baggage rather than checking them can provide further peace of mind, provided you have obtained the proper secure, tamper-evident bag from the duty-free shop.
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Food items are restricted
Liquids, gels, and aerosols are permitted through airport security only in small quantities. The Transportation Security Administration (TSA) in the US permits travellers to bring a quart-sized bag of liquids, gels, creams, and pastes in their carry-on luggage. Each container must be 3.4 ounces (100 ml) or less. Liquids that are purchased from duty-free shops at the airport or on a plane are allowed if sealed inside a security bag.
Some food items may trigger additional screening by the TSA, such as baby formula. Travellers with special dietary needs can bring their own food through security, but it must comply with the liquid restrictions and be screened through the X-ray machine. Medication is also allowed through security and is a common exception to the liquid rule. It is recommended to clearly label medication and any other food items that may not be easily recognisable, such as protein powder or spices.
While solid foods are generally allowed, some food items may be prohibited due to safety concerns. For example, a jar of peanut butter larger than 3.4 ounces is prohibited because it is considered a liquid by the TSA and falls under the restricted items list. It is important to note that the final decision on whether an item is allowed rests with the TSA officer.
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Frequently asked questions
Liquids in containers over 100ml will not be permitted through security. All containers must fit in one clear, resealable plastic bag no more than 1L in capacity.
Exceptions include baby food or milk, breast milk, liquid medicines, and duty-free liquids.
Yes, airport security staff will not let anything through that they consider dangerous. Food items and powders can obstruct images on X-ray machines and may need to be manually checked by security.
