Security is quicker when you know what you can take. The basic rules are similar almost everywhere in the world, although each country and airline adds its own twists. Here are the essentials for hand luggage.

Liquids: the 100 ml rule

  • Each container can hold a maximum of 100 ml, even if it’s half empty.
  • All of them together in one clear, resealable one-litre bag per passenger.
  • Take the bag out at security, unless you’re told otherwise.

Creams, gels, toothpaste, perfume and aerosols count as liquids, and so do foods such as yoghurt, jam and soft cheese.

Some airports have new scanners that let you leave liquids in your bag or carry larger containers, but the rules aren’t the same everywhere and can change. If you have a connection, stick to the 100 ml rule to be safe.

Exceptions: baby food and liquid medicines you need during the trip can go through in larger amounts. Tell the staff at security and bring the prescription if you have it.

Tip: if you have a layover, follow the 100 ml rule for the whole trip, even if your first airport allows more. They may enforce it at the second security check.

Batteries and electronics

  • Power banks and e-cigarettes always go in the cabin, never in your checked bag.
  • Up to 100 Wh are allowed without asking; between 100 and 160 Wh you need the airline’s approval; above that, they can’t be carried.
  • Laptops, tablets and cameras can go in the cabin. At security you’re sometimes asked to take them out of your bag.

Medicines

You can take your medicines in the cabin, and it’s the recommended option. Keep them in their original packaging and, if they’re prescription or injectable (such as insulin), bring your medical report, ideally in English too if you’re travelling abroad.

Food

Solid food (sandwiches, fruit, biscuits, nuts) gets through security without any problem. Watch out when you land: many countries ban bringing in animal products, fruit or plants from abroad. Whatever you don’t eat, leave it on the plane or in the bin before customs.

What can’t go in the cabin

  • Sharp objects: knives, penknives and scissors with long blades (those under 6 cm are usually allowed).
  • Tools, bats, sticks and anything that could be used to hit someone.
  • Weapons or replicas, and flammable or explosive material, including fireworks.
  • Lighters: usually one is allowed, which you must carry on you, not in your bag.

Important: if the airline asks you to check your cabin bag at the gate, take out power banks and e-cigarettes first. They can’t go in the hold.

Tip for getting through security fast

Before you reach the belt: liquids in their bag within reach, electronics easy to take out, nothing metal in your pockets and your belt off if it has a big buckle. You’ll avoid going through the arch twice, and the queue behind you will thank you.

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