Ever asked yourself, ‘How much liquid can you take on a plane?’ We’ve got the answer, updated for 2026.
Whether it’s sunscreen, toothpaste or your moisturiser, getting liquids through airport security can be confusing. This guide covers the latest hand luggage liquid rules at UK and Irish airports, including which airports have dropped the 100ml limit altogether.
What are the hand luggage liquid restrictions in the UK and Ireland?
If you want to take these liquids in your hand luggage, you need to make sure of a few things.
UK and Irish airports define liquids broadly: if it spreads, smears, pours or sprays—it likely counts as a liquid. Liquids include:
All drinks (including bottled water, juice and alcohol)
Semi-liquid foods (soups, honey, jam, sauces)
Liquid cosmetics (foundation, mascara, lip gloss)
Toiletries (toothpaste, contact lens solution, creams, gels, sprays)
Understand the 100ml rule and how it applies today
Heathrow, among the largest and busiest airports in the UK and globally, now permits liquids in containers up to two litres to remain in passenger cabin bags while going through security in all terminals (T2, T3, T4 and T5).
At most airports, you can only bring liquids in containers of 100ml or less. These containers must fit inside one transparent, resealable plastic bag (no larger than 20cm x 20cm), with a total capacity of no more than 1 litre. This bag must be removed and screened separately at security, unless you're flying from an airport with new CT scanners.
Gatwick, Edinburgh and Birmingham are currently the other UK airports to replace the 100ml rule with a 2-litre limit per container, and no plastic bag is required. But since rules vary by airport, always check both your departure and return airport before travelling.
The 100ml rule for liquids in 2026
Some UK airports now let you leave liquids in your bag at security thanks to new 3D CT scanners. Even better, Heathrow, Gatwick, Edinburgh and Birmingham Airports have now replaced the 100ml rule with a new limit of 2 litres per container. This means passengers flying from these airports can carry liquids up to 2 litres in their hand luggage, without removing them at security.
The following UK airports use new CT scanners, so you don’t need to remove your liquids or electronics at security:
Bristol
Gatwick
Leeds Bradford
Luton
Newcastle
Southend
Teesside
Cardiff Airport
At these airports, passengers can now bring liquids in containers of up to 2 litres:
Heathrow
Gatwick
Edinburgh
Birmingham
There’s no limit on the number of liquid containers you can bring in your hand luggage, as long as each one holds no more than 2 litres. However, metal water bottles must still be emptied before going through security, even at airports where the 100ml rule has been replaced.

Exemptions to the hand luggage rules
When more than 100ml is allowed through airport security
Sometimes you can carry liquids that are over 100ml through airport security. Here we’ll look at the liquid rules exemptions.
Duty free liquids
Bought in the airport or on the plane
You can bring any liquids purchased at the airport or on the plane, in your carry-on luggage, even if they exceed the 100ml limit. Just remember you can’t drink anything you bought at duty free during the flight.

Medication
Doctor’s note required
You can bring essential medicines or creams in your hand luggage, even if they exceed 100ml. You’ll just need a doctor’s letter or a copy of your prescription. The airport staff might need to open the containers to screen the liquids.
Cigarette lighters (no more than one)
Regulations for carrying lighters on flights are very specific
You can only carry one lighter on board and you must keep it on you during the flight. It can’t go in your hold luggage or carry-on bag. Your lighter must be on your person on the flight, but it needs to go in a clear resealable bag when you go through security.
Frozen items
Including ice packs
In the UK, generally you are allowed to carry frozen items in your hand and hold luggage. If you pack your frozen items with ice packs, they must be completely frozen when going through security. If they’ve partially thawed and contain any liquid at the bottom, security may not allow them through.

Baby food and milk
If your baby is with you
You can bring as much baby milk, sterilised water, and food as you need, even if it exceeds 100ml. You can also carry up to 2 litres of breast milk (unfrozen) in your hand luggage, even if you’re not travelling with a baby. Here is a summary of the hand luggage restrictions on baby milk and food:
Item | Is it allowed in hand luggage? |
|---|---|
Breast milk | Yes |
Frozen breast milk | No |
Soya, formula and cow’s milk | Yes (baby has to be present) |
Sterilised water | Yes (baby has to be present and water must be in a baby bottle) |
Baby food | Yes (baby has to be present) |
