Roberta Aguirre
Airport security can be a confusing and stressful part of air travel. Knowing what is allowed in your carry-on bag can make the difference between a smooth journey through security and having items confiscated. The Transportation Security Administration (TSA) is responsible for the safety of the travelling public in the U.S. and has clear guidelines on what can and cannot be brought through airport security.
| Characteristics | Values |
|---|---|
| Liquids | Must be in containers no larger than 3.4 ounces and fit inside a clear, one-quart-sized bag |
| Vaping Devices | Allowed in carry-on luggage but not checked luggage; no vaping on planes |
| Food | Most solid foods allowed; liquid foods must follow liquid volume restrictions; some foods prohibited when traveling internationally or to the US mainland from Hawaii |
| Electronic Devices | Larger than a cell phone must be placed in a bin for X-ray screening |
| Shoes | Must be removed and placed on the X-ray belt |
| Jewelry | Bulky jewelry should be removed |
| Identity | Boarding pass and ID should be readily available |
| Luggage | TSA-approved locks can expedite the process |
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What You'll Learn
Liquids under 3.4oz
Liquids are permitted through airport security as long as they are in containers that are no larger than 3.4 ounces (or 100 ml). This rule applies to carry-on luggage only and does not extend to checked baggage. All liquids must fit in a single quart-sized zip-top bag. It is recommended that you place this bag in the bin provided separately for screening.
It is important to note that the 3.4-ounce limit applies to the total liquid volume, and each individual container must be under this limit. For example, a 50 ml liquid in a 200 ml bottle would not be permitted. Additionally, the container must be able to fit the entire liquid content. Partially full larger containers are not allowed.
Liquids that are over 3.4 ounces should be packed in your checked baggage. This includes any liquids that you may need during the flight, as accessing your checked baggage during the journey is not possible. If you are connecting through a US airport, duty-free liquids purchased internationally can be carried in your carry-on baggage if they are in a transparent, secure, and tamper-evident bag.
Some liquids are exempt from these rules, such as medications, which can be carried in a separate quart-sized zip-top bag. It is always recommended to check with the relevant airport authorities for the most up-to-date and accurate information regarding permitted items. Rules may vary slightly depending on the country and specific airport regulations.
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Laptops and electronics
When it comes to laptops and other electronic devices, it is important to be prepared for airport security screening. While policies vary across airports, there are some general guidelines you can follow to ensure a smooth process.
Firstly, it is recommended to remove all electronic devices from your carry-on bag before placing them in a separate bin for X-ray screening. This includes laptops, tablets, e-readers, and handheld game consoles. By removing these items beforehand, you can avoid the hassle of fumbling through your bag at the security checkpoint.
In terms of size, a good rule of thumb is to consider anything larger than a smartphone as an item that needs to be removed. This includes devices such as cameras, Nintendo Switch, and DVD players. Smaller items, such as smartphones, charging cables (without large charging bricks), and games are typically fine to stay in your bag. However, it is worth noting that if you are carrying multiple games or similar items, you may be asked to remove them for separate screening.
Additionally, some airports have implemented advanced 3D X-ray machines that may not require you to remove any electronic devices from your bag. These machines are capable of providing a clear image even with multiple layers of electronics and other items. However, it is always best to check with the specific airport or security guidelines to avoid any delays.
It is important to ensure that your electronic devices are powered on before arriving at the airport. Officers may request to power up your devices, and any devices that cannot be turned on may not be permitted onboard the aircraft. This measure is in place to mitigate security concerns and ensure the safety of all passengers.
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Food and drink
The Transportation Security Administration (TSA) has a 3-1-1 rule in place for liquids and gels. This means you can take containers that hold 3.4 ounces or 100ml or less of liquid or gel as long as they are in a clear, quart-sized bag. This rule also applies to creamy or spreadable items with a soft consistency, such as salsa, creamy cheese, dips, peanut butter, jams, and preserves. These items are allowed in checked luggage but can only be carried on in containers of 3.4 ounces or less.
Frozen liquid items are allowed through security as long as they are frozen solid when presented for screening. However, liquid foods like yogurt or gravy are not allowed in carry-on luggage if they are in containers larger than 3.4 ounces. Alcoholic beverages over 70% alcohol by volume are prohibited from checked baggage and carry-on luggage. However, small bottles of alcohol that do not exceed 140 proof are allowed, but consumption restrictions may apply.
Some foods may be allowed in certain countries but prohibited in others. For example, bringing a meat sandwich into the United States from another country may be an issue. It is important to check the latest regulations for your destination country.
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Jewellery and valuables
When passing through airport security, it's important to know what items are allowed and which are prohibited. The Transportation Security Administration (TSA) was created in response to the September 11 attacks, with a focus on preventing dangerous items from being carried onto planes.
When it comes to jewellery and other valuables, it is advisable to pack them in your carry-on luggage rather than checking them in. This is because your carry-on luggage is always within reach, reducing the risk of theft or loss. It is also a good idea to remove any bulky jewellery before passing through the metal detector, as this can set off the alarm and delay the screening process.
Valuable items such as jewellery, watches, and electronics should be placed in your carry-on bag. This includes items such as wedding rings, engagement rings, necklaces, bracelets, earrings, and other precious items. It is recommended to keep these items with you at all times to ensure their safety.
When packing jewellery, it is best to place each piece in a separate bag or pouch to prevent tangling and damage. Soft jewellery rolls or small fabric bags are ideal for this purpose. Additionally, it is essential to declare any items exceeding your country's duty-free allowance. This usually applies to expensive items such as gold, silver, or precious stones.
For added security, consider investing in a TSA-approved luggage lock. These locks are designed to be compatible with TSA screening procedures, allowing officers to open your luggage with a master key if necessary. This can save you time and hassle during the security process and provide peace of mind regarding the safety of your valuables.
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Vaping devices
If you plan on travelling with a vape device, it is important to be aware of the rules and regulations around carrying them through airport security. While vaping laws vary from country to country, here is some general guidance for bringing vape devices through airport security:
Firstly, vape devices are typically only allowed in carry-on baggage. This means that you cannot pack your vape device in your checked luggage or put it in the aircraft hold. Passengers are required to take measures to prevent the accidental activation of the vape's heating element during transportation. This includes ensuring that each lithium-ion battery does not exceed a Watt-hour (Wh) rating of 100 Wh, and for lithium metal batteries, the lithium content should not be more than 2 grams. It is also important to check with your airline regarding any limitations on the number of devices allowed for personal use.
Vape liquids or e-liquids are subject to the same restrictions as other liquids, creams, and gels. They must be stored in a clear plastic bag, with individual bottles or cartridges not exceeding 100ml. Passengers are allowed to bring a maximum of one litre (10 x 100ml bottles) of vape liquid per person. However, it is important to consider other liquids, such as toiletries and medications, when deciding how much vape liquid to carry.
It is worth noting that while TSA security officers do not actively search for marijuana or other illegal drugs, they will refer any discovered illegal substances to law enforcement. Additionally, at least 34 countries have banned the sale of e-cigarettes, according to a 2023 World Health Organization report. Therefore, it is crucial to research the specific policies of your destination country before travelling with a vape device.
To expedite the security process, it is recommended to have a TSA-approved luggage lock and to familiarise yourself with the security process and restrictions. This includes wearing easy-to-remove shoes, packing your laptop separately, and having your boarding pass and ID ready.
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Frequently asked questions
Most solid foods are allowed in your carry-on bag. However, items that fall under the 3-1-1 liquid rule—including sauces, soups, yogurts, and spreads—must be in containers no larger than 3.4 ounces and fit inside a single quart-sized bag. Fresh fruits and vegetables are allowed on domestic flights, but international flights may have additional restrictions.
Personal electronic devices larger than a cell phone, such as laptops, tablets, e-readers, and handheld game consoles, must be placed in a bin for X-ray screening. Officers may ask you to power up your electronic devices, including cell phones.
Firearms, ammunition, fireworks, knives, safety razors, straight razors, and most tools are prohibited from being brought through airport security. Certain foods are also prohibited when travelling internationally or from Hawaii to the US mainland, including meats, vegetables, and plants.
TSA PreCheck is a program that allows low-risk travellers in the US to bypass certain steps during the security check to expedite the process. To sign up for TSA PreCheck, visit the official TSA website.
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