London Luton Airport (LTN)

Luton Airport liquid rules

At London Luton, liquids must be in containers under 100ml (or 100g) each. Keep them in your bag — Luton says a plastic bag is no longer required — and large electronics can stay in your bag too.

Liquid container limit
100ml per container
Liquids at the scanner
Stay in your bag
Clear plastic bag
No clear bag needed
Laptops and large electronics
Stay in your bag

Prescribed vs over-the-counter medicine

Luton draws a line that other airport pages don’t spell out. Prescribed liquid medicines need proof such as a prescription. Non-prescribed or over-the-counter liquid medicine is treated as a normal liquid. In practice, a large bottle of cough syrup you bought at a chemist is treated like shampoo: it has to be 100ml or less, or go in the hold.

This is security guidance, not medical advice. If you rely on a liquid medicine, carry your prescription.

Breast milk and baby food

Frozen breast milk isn’t accepted because frozen liquids can’t be screened. Liquid breast milk is covered by the GOV.UK exemption, which allows containers up to 2 litres.

Check a container at Luton

Container size

Use the size printed on the container — not how much is left inside.

What “100ml or 100g” covers

Luton gives the limit by weight as well as volume, which helps with pastes and gels sold by weight — such as toothpaste and hair gel. If the tube says more than 100g, it’s over the limit, even if it’s half used.

Not stated by Luton

Luton’s pages don’t say whether metal drinks bottles must be empty or whether your own containers need their size printed on them. Using marked travel bottles (paid link) avoids any argument.