Airport security can be one of the most confusing parts of travelling, especially when rules about liquids, electronics, medicines and hand luggage change from one airport to another. In 2026, passengers should not assume that every UK airport follows exactly the same security procedures.

Understanding the latest UK airport security rules in 2026 before leaving home can help you avoid delays, repacking your cabin bag or having prohibited items removed at security.

From liquid restrictions to essential medicines and electronic devices, here is what travellers should know before heading to a UK airport.

Do UK Airports Still Have the 100ml Liquid Rule in 2026?

Yes, in most cases.

According to the UK Government, passengers generally cannot take liquids through airport security in containers larger than 100ml. However, some airports may allow containers holding up to 2 litres, so passengers should always check the specific rules for their departure airport.

This distinction is important because the 2-litre rule is not a nationwide UK airport rule.

At Manchester Airport, for example, liquids, aerosols and gels must currently be in containers of 100ml or less. The airport also states that these liquids can remain inside hand luggage rather than being removed and placed in a separate plastic bag.

Travellers flying from Manchester can therefore benefit from the newer screening process while still having to respect the 100ml container limit.

For a more detailed explanation, travellers can also check this guide on Manchester Airport Liquid Rules 2026 before packing their hand luggage.

What Counts as a Liquid at Airport Security?

The term “liquid” covers more than just drinks and bottled water.

Airport security rules can also apply to products such as:

• Shampoo and conditioner
• Shower gel
• Toothpaste
• Perfume and aftershave
• Creams and lotions
• Liquid makeup
• Mascara
• Hair gel
• Aerosol deodorant
• Hand sanitiser
• Certain food products
• Other substances with a similar consistency

If you are unsure whether an item counts as a liquid, it is safer to check the airport’s guidance before travelling.

Remember that the container size matters. A half-full 200ml bottle can still be rejected because the container itself is larger than the permitted limit at airports operating the 100ml rule.

Do Liquids Still Need to Be in a Clear Plastic Bag?

This depends on the airport.

Traditional UK airport security procedures required passengers to place small liquid containers in a clear, resealable plastic bag. However, newer security scanners have changed the process at some airports.

Manchester Airport currently says that liquids under 100ml can remain in hand luggage and no longer need to be placed in a separate plastic bag.

This does not mean travellers should assume the same procedure applies everywhere.

If you are returning from another airport, check its security instructions before your return journey. Manchester Airport itself advises passengers to check the rules at their return airport because procedures can differ.

Can You Take Medicines Through Airport Security?

Essential medicines can receive exemptions from the standard liquid restrictions.

The UK Government states that passengers can carry essential liquid medicines exceeding 100ml in hand luggage. Medical equipment that is essential for the journey may also be permitted.

If your liquid medicine is in a container larger than 100ml, you may need supporting evidence, such as a prescription or doctor’s letter, depending on the circumstances.

It is a good idea to keep medicines easily accessible and carry relevant documentation when travelling. This can make the security process easier if an officer needs to verify the contents.

What About Baby Milk and Baby Food?

Parents travelling with babies or young children have additional allowances.

The UK Government provides exemptions for certain baby food and baby milk, including breast milk. Individual containers of breast milk can be permitted in quantities of up to 2,000ml, although they may need to be screened separately at security.

Manchester Airport also confirms that breast milk can be carried in hand luggage in containers of up to 2,000ml, along with certain other baby-feeding essentials when the relevant conditions are met.

Because exemptions can have specific conditions, families should check the latest guidance before travelling.

Do You Need to Remove Electronics From Your Hand Luggage?

Security procedures are becoming more convenient at airports using newer scanning technology.

At Manchester Airport, new security scanners mean passengers generally do not need to remove liquids or electronic devices from their bags during screening. The airport reported that these scanners had helped improve the security process in 2026.

However, travellers should not assume that every airport has identical equipment.

If an airport security officer asks you to remove an electronic device or another item, follow the instructions provided at the security checkpoint.

What Items Should You Avoid Packing in Hand Luggage?

One of the easiest ways to speed up the security process is to check your cabin bag before leaving home.

Sharp objects and other restricted items should not be packed in hand luggage unless specifically permitted under the applicable rules. Everyday objects can sometimes cause problems because passengers do not realise they fall under security restrictions.

Manchester Airport has highlighted examples of items that have been confiscated at security, including scissors, toy guns, a baseball bat and everyday products containing more than 100ml of liquid.

Before travelling, check the prohibited-items guidance for your airport and airline rather than relying on assumptions.

How to Prepare Your Hand Luggage for Airport Security

A few minutes of preparation at home can make the airport experience much easier.

1. Check the airport’s current rules

Do not rely solely on information from previous trips. Security procedures can change, particularly as airports introduce new screening technology.

2. Check every liquid container

If your airport follows the 100ml rule, make sure individual liquid containers meet the requirement.

3. Keep essential medicines accessible

If you are travelling with prescription or essential liquid medication, keep it easy to identify and carry any supporting documentation that may be required.

4. Remove prohibited items

Check pockets, toiletry bags and old travel bags for items that should not be taken through security.

5. Check your return airport

Security rules at your destination or return airport may be different from those at your departure airport.

6. Arrive prepared

Have your boarding information ready and allow enough time for check-in, baggage drop, security and walking to your departure gate.

Why Airport Security Rules Can Be Different in 2026

The introduction of advanced security scanners is one reason passengers may notice different procedures at different airports.

Some airports have invested in technology that can scan cabin baggage without requiring passengers to remove certain items. This can make security faster and more convenient.

However, technology adoption is not identical across every UK airport. As a result, travellers should treat airport-specific guidance as more reliable than general assumptions about UK security.

The UK Government also confirms that some airports may allow liquid containers of up to 2 litres, while others continue to apply the 100ml restriction.

Frequently Asked Questions About UK Airport Security

Is the 100ml liquid rule still in place in the UK in 2026?

Yes, the 100ml limit still applies at many UK airports. Some airports may have different allowances, including up to 2 litres, so passengers should check the rules for their specific airport before flying.

Can I take a 200ml bottle that is only half full?

At airports applying the 100ml container limit, no. The restriction applies to the capacity of the container, not simply how much liquid remains inside it.

Does Manchester Airport still have a 100ml liquid limit?

Yes. Manchester Airport currently states that liquids, aerosols and gels over 100ml are not permitted through security.

Do I have to remove liquids from my bag at Manchester Airport?

Manchester Airport currently says liquids under 100ml can remain inside hand luggage and do not need to be placed in a separate plastic bag.

Can I take liquid medicine over 100ml?

Essential liquid medicines over 100ml can be allowed, subject to the applicable security requirements. Supporting evidence may be needed in some circumstances.

Final Thoughts

The biggest mistake travellers can make in 2026 is assuming that every UK airport follows exactly the same security rules.

Although advanced scanners have made security more convenient at some airports, the 100ml liquid restriction remains in place at many UK airports, including Manchester Airport. At the same time, some airports may permit larger liquid containers, which explains why travellers may encounter conflicting information online.

The safest approach is simple: check the latest guidance for your departure airport, prepare your hand luggage in advance and check the rules for your return journey as well.

A few minutes of preparation can help you get through airport security with fewer surprises and a much smoother start to your trip.