UK Airport tells passengers 'remember' security rule for luggage

A UK Airport has reminded passengers to brush up on the security rules concerning liquids in hand luggage. In an announcement posted online, the airport advised travellers that there are restrictions on liquids.

In a post on X, Heathrow Airport said: "Good morning and welcome to Heathrow Airport. We hope you are looking forward to the weekend ahead of you! Remember, liquids should be under 100ml and in a clear bag when going through security."

GOV.UK explains that while some airports allow passengers to take liquid in containers that hold up to two litres of liquid, most airports do not let you carry liquids in containers larger than 100ml through security. The rules apply even if the container is not full.

However, there are exceptions for items such as medicines, baby milk, or food for special dietary requirements. Heathrow Airport sets out its rules on a dedicated webpage on the airport's website.

The advice states: "Only limited quantities of liquids may be carried through airport security into the departure lounge. This includes bottled drinks, suntan lotion, fragrances, cosmetics, toiletries and all frozen liquids."

As such, all liquids, creams, gels, pastes, and aerosols taken through security must be carried in containers of 100ml or less. The items must fit inside one transparent and resealable bag no larger than 20cm x 20cm, reports Belfast Live.

Once you arrive at security control, you will need to place this bag in the tray with your other items. It must be able to close properly when all of the liquid containers are stored inside it.

Heathrow Airport says that liquids in containers over 100ml will not be permitted through security and should be packed in hold baggage, though there are a few exceptions to the 100ml rule.

The website explains: "You are only permitted to carry quantities of liquid medication in excess of your personal liquid allowance where it is needed during the course of your flight.

"All medication should be accompanied by documentary proof of authenticity, such as a prescription or letter from a medical practitioner confirming that you need them for your journey. Liquid medication that is not required on the flight should be carried as hold luggage."

There are also different rules for breast milk. The guidance explains: "Breast milk can be carried in the cabin; when it is stored in a clear, transparent container or bag. Flasks cannot be permitted. The volume of each container / bag should not exceed 2 litres.

"Breast milk should be in a liquid format and not frozen. When travelling without an infant only breast milk can be carried in quantities greater than 100ml, this does not apply to formula milk or other baby juice / food."

You can take liquids purchased at an airport or on a plane through security, provided the items are sealed inside a security bag and the receipt for the items is sealed in the security bag. While you should not open the bag until you reach your final destination, airport staff may open the items at security control.