Surprising things you can't bring in your carry-on

Heading on a trip from Canada? Don't get caught off guard at airport security!

When you’re flying from Canada, there are of course restrictions on what you can and can’t bring on board your flight. And while certain carry-on restrictions are obvious, others might surprise you. Here we look at 10 surprising things that you can’t pack in your carry-on luggage.

Understanding restricted carry-on items

What you can and can’t bring on a plane as carry-on luggage

Yes, we all know about the carry-on restrictions for liquids but there are plenty of other items that are restricted in your carry-on luggage. Some are obvious. Others less so.

If you’re asking, “can you bring a knife on a plane?” or “can you bring protein powder on a plane?” the answers might surprise you. Here we look at 10 items and detail whether you can bring them in your carry-on luggage. We’ll cover things like tent stakes, fishing hooks, lighters, and soup. Yes, some people even ask, “can I bring soup on a plane?”!

Traveler wheeling a carry-on bag

10 surprising items banned from your carry-on luggage

Avoid packing these items on your next flight

The next time you fly, make sure you know what you can and can’t bring in the cabin with our list of 10 surprising items that are prohibited in carry-on luggage.

1. Tent stakes

Heading to a music festival?

Tent stakes need to be packed in your checked luggage, as they're considered potential weapons. So, even if you’re travelling light, the fact you can’t bring tent stakes in your carry-on luggage means you’ll need to check a bag.

Camping gear and a backpack arranged outside a tent.

2. More than one lighter

That’s right, you can have a lighter, but no more than one

This one is simple: one lighter is okay to keep on your person, but packing extras in your carry-on is a no-no.

3. Soup

Or any liquid over 100ml

Remember the 100ml rule for liquids, gels, and pastes. An aerosol in your carry-on luggage counts as a liquid too. Top tip – take an empty reusable water bottle through security with you which can then be filled later.

4. A giant bag of protein powder

Smaller portions are not an issue

While not outright banned, containers over 350ml might raise eyebrows. Pack smaller portions or pack it in your hold luggage.

A picture of protein powder with a scoop

5. That "harmless" toy gun

Even if it's obviously fake

Anything resembling a weapon falls under the umbrella of restricted carry-on items. This should be packed in checked luggage to avoid any issues.

6. Your lucky fishing hook (if it's long)

Although, fishing rods are okay

Fishing rods are generally okay but hooks longer than 6cm need to be packed in your checked bags.

7. That "antique" sword letter opener

Even though this is not a weapon, it could be

Sounds cool, but sharp objects like this are a definite no-no in your carry-on.

8. Your DIY tie-dye kit

And other chemicals

Chemicals like bleach and dye are restricted. Save the tie-dye party for after your trip.

An image of a tie-dyed t shirt

9. A "gag gift" stun gun

Even if it's not real

Self-defence items like stun guns are prohibited in carry-on luggage, and that includes replicas.

10. That super realistic water bottle grenade

Be wary of novelty gifts designed to look like offensive items

Novelty items resembling weapons are a big no-no. Leave them at home or pack them in your checked bags: water bottles, aftershave or perfume bottles, children's toys etc.

Items not permitted in carry-on luggage FAQs

Generally, no. Even small pocketknives are usually prohibited in carry-on luggage in Canada. It's best to pack them in your checked bags.

If it's a liquid, aerosol, or gel (like shampoo), it needs to follow the 3-1-1 rule: containers must be 100ml (3.4 ounces) or less, fit in a single 1-litre (1-quart) clear, resealable bag, and be limited to one bag per passenger. Larger toiletries should go in checked luggage.

No, the same carry-on restrictions apply for all flights within Canada, even if you have a connecting flight.

Most tools, especially those longer than 6cm, are prohibited in carry-on luggage. It's best to pack your tool kit in your checked bags.

While not strictly banned, powders in containers larger than 350ml (12 ounces) may be subject to additional screening or prohibited. Consider packing smaller quantities or placing your protein powder in your checked luggage to avoid potential issues."

If the banning of certain items still seems a little unclear, you can check out the official guidelines from Transport Canada.

Disclaimer: Information correct as of September 2024, obtained from www.catsa-acsta.gc.ca and www.tc.gc.ca - always check the latest guidance from official sources before booking your trip.

Looking for the cheapest flights? Skyscanner helps you find the best flights, hotels and car hire deals for your trip.

Travelers and cabin class

Latest articles

Catch every flight deal with ‘Price Alert’ and ‘Saved List’

The Smarter Summer Report

The easy way to find the cheapest flights anywhere Skyscanner 'Everywhere Search'

The best time to visit Ooty