London Heathrow Airport liquid rules: Up to 2 litres
Flying from London Heathrow? The verdict, the airport's own wording and its source link are below. Checked 15 October 2026 against the airport's own website. Same rules for hand luggage and carry-on.
Heathrow no longer applies the 100ml rule: liquids in containers of up to 2 litres can stay inside your cabin bag. Laptops, tablets and e-readers also stay in the bag in all terminals.
| Liquid container limit | Up to 2 litres |
| Clear plastic bag needed | No |
| Liquids can stay in your bag | Yes |
| Laptops can stay in your bag | Yes |
What this means at London Heathrow Airport
- Airport states: 'Liquids in containers of up to 2 litres can stay inside your cabin bag.'
- Airport states: 'Leave liquids in your cabin bag. You don't need to remove them for screening.'
- Airport states: 'Leave laptops, tablets and other large electronic devices in your bag.'
- Security FAQs add: laptops, tablets and eBook readers 'can remain in your cabin baggage, including when you are passing through security in all terminals'.
- No clear plastic bag is mentioned anywhere on the liquids page.
- Liquid medicines allowed in cabin baggage; quantities beyond immediate need require a prescription or doctor's letter.
- Baby food, formula milk and breast milk allowed; breast milk must be in containers of up to 2 litres and stored in a clear container or commercial storage bag.
- Duty free: liquids bought after security, including items over 100ml, can usually be taken on the flight.
- Cross-checked against Heathrow's own Security and baggage FAQs (https://www.heathrow.com/customer-support/faq/faq-security).
- Airport states: reusable metal or double-walled (insulated) bottles must be empty when you go through security.
Source: Hand baggage and liquids | Heathrow. Checked 15 October 2026.
Security rules are set by the airport, but your bag size is set by your airline. Check your bag against every airline here.
Frequently asked questions
Can I take liquids over 100 ml through London Heathrow Airport?
Yes, up to 2 litres per container.
Do I need a clear plastic bag at London Heathrow Airport?
No, the airport no longer requires one.
What are the liquid rules at London Heathrow Airport?
Heathrow no longer applies the 100ml rule: liquids in containers of up to 2 litres can stay inside your cabin bag. Laptops, tablets and e-readers also stay in the bag in all terminals.
Has London Heathrow Airport scrapped the 100ml liquid rule?
Yes. Heathrow no longer applies the 100ml rule: liquids in containers of up to 2 litres can stay inside your cabin bag. Laptops, tablets and e-readers also stay in the bag in all terminals.
Do I need to take liquids out of my bag at London Heathrow Airport?
No. Liquids can stay in your hand luggage at screening.
Do I need to take my laptop out at London Heathrow Airport?
No. Laptops and tablets can stay in your bag.
Can I take liquid medicine or baby milk through London Heathrow Airport?
Liquid medicines allowed in cabin baggage; quantities beyond immediate need require a prescription or doctor's letter. Baby food, formula milk and breast milk allowed; breast milk must be in containers of up to 2 litres and stored in a clear container or commercial storage bag.
Are liquid rules the same at my destination airport?
Not always. Rules vary by airport, so check your destination and any connecting airports, including your return journey (GOV.UK).