London Heathrow Airport liquids rules

At Heathrow you can take liquids in containers up to 2 litres each, with no plastic bag, and keep liquids and laptops in your bag in all four terminals.

Largest container

Up to 2 litres

Clear bag needed

Not stated

Liquids stay in bag

Yes

Laptops stay in bag

Yes

Every lane

Yes, all lanes

Changed

23 Jan 2026

This covers Terminals 2, 3, 4 and 5, which have all had the new scanners since 23 January 2026.

Medicines, baby food and duty-free in sealed bags are exempt from the 100 ml limit. Rules vary by airport, so check your return and connecting airports too.