
When travelling with liquids, it's important to know the rules and restrictions of the airports you're flying from, to and through. While some airports have scrapped the 100ml liquid limit, most airports still require liquids to be in containers of no more than 100ml, and some allow up to 2 litres. Liquids must be placed in a separate, transparent, resealable plastic bag, which holds no more than a litre and measures approximately 20cm x 20cm. Some airports provide these bags, but it's always good to be prepared and have your own.
| Characteristics | Values |
|---|---|
| Plastic bag requirement | Liquids must be placed in a single, transparent, resealable plastic bag. |
| Bag size | The bag should hold no more than a litre and measure approximately 20cm x 20cm or be quart-sized. |
| Container size | Containers holding liquids should be no larger than 100ml. Some airports may allow containers holding up to 2 litres. |
| Bag availability | Some airports provide plastic bags for liquids if passengers don't have their own. |
| Liquid types | Includes liquids, aerosols, gels, creams, and pastes. |
| Exemptions | Exemptions may apply for baby milk or food, medicines, food for special dietary requirements, and duty-free liquids. |
| Duty-free liquids | Duty-free liquids in secure, tamper-evident bags may be allowed if purchased internationally and within 48 hours of travel. |
| Airport variations | Rules vary by airport and country. Some UK airports have scrapped the 100ml limit. At US airports, liquids must be removed from hand luggage and placed in a clear plastic bag. |
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What You'll Learn
- Plastic bags for liquids at the airport must be transparent, resealable, and no larger than 20cm x 20cm
- Liquids must be in containers of no more than 3.4 ounces (100ml) to be allowed through security
- Liquids purchased at duty-free can be taken through security if sealed in a security bag with a visible, sealed receipt
- Some airports provide plastic bags for liquids, but it is recommended to bring your own to avoid having to throw away excess items
- New CT scanning technology at some airports may soon eliminate the need to remove liquids from carry-on baggage

Plastic bags for liquids at the airport must be transparent, resealable, and no larger than 20cm x 20cm
When travelling with hand luggage, it is important to be aware of the restrictions on liquids. Liquids, including drinks, cosmetics, sprays, gels, and contact lens solutions, must be in containers of no more than 100 ml and placed into a single, transparent, resealable plastic bag. The bag must not exceed a capacity of 1 litre, with suggested dimensions of 20 cm x 20 cm.
This bag must be presented separately for examination at security. Any liquids bought at the airport or on the plane are exempt from these rules, but they must remain sealed and unopened until your final destination. It is worth noting that some airports provide these bags for free, although some travellers prefer to bring their own.
The rules regarding liquids in hand luggage have been put in place for security reasons and to prevent issues during the flight. Liquids, semi-liquids, and gels can cause problems during the screening process as they can be difficult to identify. By having a transparent bag, security staff can easily see the contents and screen them accordingly. This also helps to speed up the security process, as staff do not need to open every bag to check the contents.
In addition to the size and transparency requirements, the plastic bag must also be resealable. This means that the contents must fit comfortably inside the bag so that it can be sealed. If the bag is too full and cannot be sealed, you may be asked to discard items or transfer them to a larger bag provided by the airport. It is important to note that only one such bag of liquids is permitted per passenger.
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Liquids must be in containers of no more than 3.4 ounces (100ml) to be allowed through security
When travelling with liquids as hand luggage, it's important to follow the relevant rules and regulations to ensure a smooth journey through airport security. One of the key restrictions to be aware of is the limit on the volume of individual liquid containers. Passengers are typically required to adhere to a maximum container size of 3.4 ounces or 100 milliliters for liquids, aerosols, gels, creams, and pastes. This rule applies to various travel items, including toiletries and duty-free purchases.
To comply with this regulation, it is recommended to use containers that are 3.4 ounces (100ml) or smaller. Any larger containers, even if only partially filled, may not be permitted through security. This restriction helps standardize the volume of liquids carried onboard and simplifies the screening process. It's important to note that some airports may have different rules, and exemptions may apply for certain items like baby food or medications.
To facilitate security screening, it is often required to place these small liquid containers in a separate, transparent, resealable plastic bag. This bag should hold no more than a litre and measure approximately 20cm by 20cm. The contents must fit comfortably inside so that the bag can be easily sealed. Some airports provide these bags, while at others, passengers must bring their own. It is advisable to use a clear bag, as this allows for easy identification and inspection of the liquids during security checks.
In some cases, duty-free liquids purchased internationally and transported in secure, tamper-evident bags may be allowed in larger sizes. However, the bags must remain sealed and show no signs of tampering when presented for screening. Additionally, the original receipt for the liquids should be presented, and the purchase should have been made within 48 hours. These exemptions may vary depending on the country and airport, so it is always advisable to check the latest guidelines before travelling.
While most airports enforce the 3.4-ounce (100ml) restriction, it's worth noting that some airports are introducing new CT scanning technology that eliminates the need for this limit. These advanced scanners provide a 3D image of a bag's contents, allowing passengers to carry larger containers without the previous restrictions. However, this technology is not yet universally available, and traditional liquid restrictions still apply at most airports worldwide. Therefore, it is essential to stay informed about the specific rules and regulations of your departing and connecting airports.
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Liquids purchased at duty-free can be taken through security if sealed in a security bag with a visible, sealed receipt
When travelling with liquids, it's important to be aware of the restrictions in place at your airport of departure. Generally, most airports have a limit on liquids of 100ml per container, and these must be placed in a single, transparent, resealable plastic bag, separate from your carry-on baggage.
However, there are some exceptions to the rules. Liquids purchased at duty-free can be taken through security if sealed in a security bag with a visible, sealed receipt. This is permitted at most airports, but it is important to check the rules of your specific airport before travelling. For example, in the UK, passengers travelling through Edinburgh and Birmingham can now take liquids of up to 2 litres through security, while the 100ml limit remains in place at other airports.
Additionally, the rules for carrying liquids may differ for transfer or transit passengers, and some airports may allow containers holding up to 2 litres. It is always recommended to pack liquids in your hold baggage if possible, as this can help to streamline the screening process.
It is worth noting that airport security staff have the final say on what is permitted through security, and they may request that you remove liquids from your hand luggage and place them in a provided plastic bag for screening. These bags are typically available at the airport, but some travellers prefer to bring their own to ensure they meet the size requirements.
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Some airports provide plastic bags for liquids, but it is recommended to bring your own to avoid having to throw away excess items
When passing through airport security, it is important to be aware of the restrictions on liquids. Most airports require that liquids, gels, and aerosols are in containers of no more than 3.4 ounces (100ml) and that they are placed in a single, transparent, resealable plastic bag.
Some airports provide these plastic bags for liquids, but it is not guaranteed. For example, London Gatwick provides plastic bags, whereas Toronto Pearson does not. It is recommended to bring your own plastic bag for liquids to avoid having to throw away excess items. One source mentions that their liquid bag was slightly taller than the ones provided by Heathrow Airport, and they had to hand some items to their partner. Another source mentions that London Gatwick made them throw away anything that didn't fit in the provided bag.
It is also important to note that some airports may allow containers holding up to 2 litres of liquid. Additionally, there are certain exemptions for baby milk, food, medicines, and duty-free liquids. It is always best to check the rules of the specific airport before travelling.
Furthermore, any liquid, gel, or aerosol that alarms during screening will require additional screening and may not be permitted in carry-on baggage. It is recommended to pack such items in checked baggage.
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New CT scanning technology at some airports may soon eliminate the need to remove liquids from carry-on baggage
Plastic bags for liquids are typically provided by airports, and they are mandatory at some airports. These bags are required to be transparent, resealable, and not exceed a litre in volume or 20 cm in length and width. Liquids, gels, creams, pastes, and aerosols must be in containers of 3.4 ounces (100 ml) or less to be allowed in carry-on baggage.
However, new CT scanning technology at some airports may soon eliminate the need to remove liquids from carry-on baggage. This technology, which has been implemented at major airports worldwide, including in the US, UK, Italy, Spain, Sweden, Japan, South Korea, India, and Qatar, uses 3D imaging to enhance threat detection capabilities and streamline the security process.
For example, London City Airport in the UK has scrapped the 100ml liquid limit for cabin baggage with the introduction of CT scanners, allowing passengers to carry up to two litres of liquid in their hand luggage. Similarly, Dutch airport authorities have introduced CT scanners, recommending that passengers bring containers up to 100ml, with larger bottles allowed through if approved by the scan and security staff.
While this technology may initially slow down the screening process due to passengers having to place all items in bins, it is expected to enhance efficiency in the long run by reducing wait times and improving the overall security process. The TSA is investing $1.3 billion to roll out hundreds of these scanners, starting in the summer of 2023, at airports in Texas and New York, with plans to expand to smaller airports across the US.
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Frequently asked questions
Yes, at most airports, you will need to remove liquids from your hand luggage and put them in a clear, resealable plastic bag. The bag provided must be no larger than 20cm x 20cm and must hold no more than a litre.
Some airports will provide you with a plastic bag for your liquids if you don't have one. However, it is recommended that you bring your own to avoid delays or having to throw away liquids that don't fit in the provided bag.
Some airports have introduced new CT scanners, which allow passengers to keep liquids in their hand luggage or cabin bag when going through security. Airports that have introduced these scanners include Edinburgh and Birmingham in the UK, and some airports in France, Greece, Italy, Portugal, and Spain.











































