A Friendly Guide to Smoother Security Screening

 

Know before you go

There’s a moment, right before a trip, when everything feels possible. Your itinerary is taking shape, and you can almost picture yourself stepping into the airport, coffee in hand, boarding pass ready, eager for the adventure ahead.

But first you have to pack. Here’s a walkthrough of a few key rules that travellers ask us about most – the ones that can make the biggest difference in helping you move through security screening faster and easier.

Liquids, Aerosols, and Gels (LAGs): The famous 100 mL rule

If you’ve ever stood in a security line watching someone frantically chug a bottle of water, you already know this one matters. In your carry-on, liquids, aerosols, and gels must be in containers of 100 mL or less, all fitting comfortably into a 1 L clear, resealable bag. Think travel-size toothpaste, lotion or lip gloss, the little things that help you feel human on a long travel day.

It’s a simple rule, but it’s also the one that catches travellers off guard the most. A full-size bottle of sunscreen or a forgotten water bottle tucked into a side pocket can slow you down. A quick check before you zip up your bag can save you time at the checkpoint.

Electronics and batteries: What stays with you

Most of us travel with a small tech ecosystem these days – laptops, portable chargers, headphones, and more. These items are best packed in your carry‑on so they stay protected and accessible. Just make sure your electronics can be powered on during screening if requested.

At regular screening lines, you’ll be asked to remove large electronics, like your laptop, from your carry-on and to place them in a bin. At lines with CT X-ray technology, you can leave them in your bag.

Granular materials: A small detail that makes a big difference

This is one of those lesser-known rules. Granular materials, like powders, spices, bath salts, or even certain cosmetics, are permitted in carry-on, but limited to containers up to 350 ml. Anything larger needs to go in your checked baggage.

Medical devices and supplies: What to expect

Travelling with medical devices or supplies doesn’t have to feel stressful. Screening officers see these items every day, and there are processes in place to help you move through security comfortably. If you use a device like an insulin pump, ostomy bag, or mobility aid, you can let the screening officer know before screening begins. They can walk you through the process, offer alternate screening methods when appropriate, and ensure your device stays with you at all times.

Prescription and non-prescription medication including liquids, gels, and aerosols are permitted in quantities larger than 100 ml. They don’t need to go in your liquids bag, but they should be removed from your carry-on to be screened separately. Just let the screening officer know that they are medically necessary items.

A smoother journey starts before you leave home

While security screening is just one step in your journey, understanding a few key rules can make that step faster and easier.

If you’re ever unsure about what can or can’t be brought on a plane, our “What Can I Bring? Tool” is your best travel companion. It gives you quick, clear answers about what’s allowed in carry-on or checked baggage, and whether any special considerations apply.

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Your trip starts long before you reach the airport. With a bit of knowledge and planning, you’ll be ready to go through security screening with confidence and keep your journey moving smoothly.