Yes, you can fly with cannabis within Canada, as long as you carry no more than the 30 g public possession limit of dried cannabis or its equivalent. The rule that matters most: never take cannabis across an international border, in any form. Oils, vapes and topicals also face airport liquid rules, so pack with care.
TL;DR:
- The 30 g cap covers all products combined: 1 g of dried cannabis equals 15 g of edibles, 70 g of non-solid cannabis products, or 0.25 g of concentrates.
- Liquids and topicals in cabin baggage must fit 100 ml containers inside one 1 L resealable bag; larger products go in checked baggage unless medically authorized.
- Medical patients may carry cannabis oil above 100 ml in cabin baggage with proper documentation, which screening officers may verify with local authorities.
- The legal purchase and possession age varies by province or territory, so check the rules at your destination rather than assuming your home rules apply.
- A domestic flight diverted to the United States can expose travelers to U.S. federal enforcement, while undeclared cannabis entering Canada can bring penalties up to $2,000 CAD.
Table of Contents
- What does the 30 g limit mean for domestic flights?
- How should you pack cannabis for a flight?
- What happens at airport security?
- What should medical cannabis patients carry?
- Why can you never fly with cannabis across the border?
- What should your travel day checklist look like?
- What if something goes wrong?
- Why we say plan ahead, or skip carrying it
- Prefer to skip carrying it? Order for delivery instead
- FAQ
- Sources
What does the 30 g limit mean for domestic flights?
Adults in Canada may possess up to 30 grams of dried cannabis or its equivalent in public for non-medical use, and that limit travels with you on a domestic flight. It is a total across all products, not a limit per product. If you pack flower, edibles and a vape cartridge, everything counts toward the same 30 g.
The Justice Canada equivalencies, in plain terms:
- 1 g of dried cannabis equals 5 g of fresh cannabis.
- 1 g of dried cannabis equals 15 g of solids, such as edibles.
- 1 g of dried cannabis equals 70 g of non-solid cannabis, such as lotions.
- 1 g of dried cannabis equals 0.25 g of concentrates, such as vaping liquids.
- 1 g of dried cannabis equals 1 cannabis plant seed.
Pro Tip: Let the maths happen before you get to the airport: the Canada converts a mixed bag of products into one total.
Here is a quick example. Say you carry dried flower, pre-rolls and solid edibles. Use the Canada.ca possession calculator to convert the products into one total and check that you are within the limit.
Check the numbers before you pack:
Under the federal rules, 30 g of dried cannabis, or its equivalent, is the most an adult can legally have in public. That cap is the same whether you are on the street or at the departure gate, per Justice Canada.
The age to buy and possess cannabis is set by each province or territory, so your destination may differ from home. Read the federal overview of the Cannabis Act for the national framework, then check local rules where you land.
How should you pack cannabis for a flight?
The 30 g limit can go in your carry-on or your checked bag. Liquids and topicals are where it gets tricky, because CATSA applies its liquids, aerosols and gels rules to liquid and topical cannabis in carry-on baggage. Containers must be 100 ml or smaller and fit together in a single 1 L resealable bag. Larger liquid products belong in checked baggage, unless they are authorised for medical use.
Vape devices need extra thought. CATSA’s travel guide is the place to confirm how your airline and the device maker want batteries handled. Pack batteries carefully so they cannot switch on or short out, and empty the device if the rules say so.
A product by product packing checklist:
- Flower: Seal it in its original, labelled package and keep it in a smell-proof container.
- Pre-rolls: Keep them in the hard case or tube they came in so they do not get crushed. Our French Cookies pre-roll pack is a good example of a sealed, labelled format.
- Edibles: Keep them in the original sealed packaging with the label showing THC content.
- Oils, sprays and vape liquids: In carry-on, use 100 ml containers or smaller in your 1 L bag. Anything larger goes in checked baggage.
- Cartridges and devices: Pack batteries safely, follow airline and manufacturer guidance, and carry devices empty if required. Something like the Storz & Bickel Venty should travel in its case.
Quick packing rules to remember:
- Keep products in original packaging so labels are visible.
- Double bag anything that can leak or smell.
- Keep everything within the 30 g total, whichever bag it rides in.
Pro Tip: Pack your cannabis in one easy to reach pouch, so you can show it quickly if a screening officer asks.
What happens at airport security?
CATSA’s job is aviation security, not enforcing provincial cannabis laws. Standard screening follows familiar steps: boarding pass and ID, bins, X-ray, and for some passengers a full body scanner. Some travellers are also pulled for additional random screening, and that can include searches and swabs.
If an alarm sounds or an officer wants a closer look, you may be asked to open your bag. An explosive trace detection swab, known as an ETD swab, is a quick wipe of your hands or belongings, then tested by a machine. A swab does not mean you did anything wrong; it is part of routine additional screening.
Officers may ask to see your cannabis, and for medical cannabis they may contact local authorities to verify documentation. This is exactly why preparation pays off.
What to expect and how to handle it:
- Be cooperative and polite. The process goes faster when you are.
- Keep cannabis where you can reach it without unpacking everything.
- Allow extra time at the checkpoint, especially on busy travel days.
- Keep your liquids in the 1 L bag and out of the way of other items.
- Some airports are upgrading their screening technology, but you should still check your departure airport’s rules. YVR’s screening upgrade is one example.
What should medical cannabis patients carry?
Medical patients must follow the Access to Cannabis for Medical Purposes Regulations, and the amounts they carry should match their authorisation. CATSA’s guidance on medication and medical items says medical cannabis oil over 100 ml may be permitted in carry-on when you have proper documentation and show it to screening officers.
Screening for medical items works a little differently, because officers may need to confirm that what you are carrying is genuine. They can contact local authorities to check your paperwork, so have it ready and easy to find.
What to have with you:
- The original documentation tied to your medical authorisation.
- Pharmacy labels or prescriptions that match what you carry.
- Accessible copies, in case an officer or local authority asks to verify them.
- Products in their original, labelled packaging.
A medical authorisation does not change the rule at the border. CBSA is clear that medical documents do not permit international transport. If you need medical cannabis delivered while travelling in Canada, our guide to shipping medical cannabis in Canada explains how shipping works.
Why can you never fly with cannabis across the border?
Taking cannabis across the Canadian border in any form is illegal, including products you bought legally, and including medical cannabis. Health Canada’s video sums it up in one line: don’t bring it in, don’t take it out.
The same rule applies when you come home. You must declare any cannabis to CBSA when entering Canada, and failing to do so, or hiding it, has consequences.
Failing to declare cannabis at the border can bring monetary penalties of up to $2,000 CAD, as well as seizure, arrest and prosecution, according to CBSA.
Points to keep in mind:
- The ban covers every form: flower, oils, edibles, vapes and topicals.
- Medical authorisation does not override it.
- Health Canada may authorise cross-border transport only in rare, case-by-case situations.
- Even a domestic flight can be diverted to a U.S. airport. U.S. federal law still treats cannabis as illegal, so Halifax Stanfield warns travellers could face U.S. enforcement.
What should your travel day checklist look like?
A few minutes of prep takes most of the stress out of travel day.
Before you travel:
- Weigh your items, or use the Canada.ca calculator, to confirm you are within 30 g.
- Check the rules in the province or territory where you are landing.
- Pack carry-on liquids in 100 ml containers, all in a single 1 L resealable bag.
- Put larger liquid products and spare supplies in checked baggage.
At the airport:
- Keep cannabis easy to reach for inspection.
- Have medical documents on hand if they apply to you.
- Give yourself extra time for screening.
On the plane and when you arrive:
- Do not consume cannabis in the airport or on the aircraft.
- Follow the rules where you land, and dispose of anything you cannot keep.
Pro Tip: Photograph your receipts and product labels and keep the pictures on your phone. If anyone asks, you can show quickly that you bought legally.
What if something goes wrong?
Problems are uncommon, but they can be serious. Knowing the possible outcomes helps you stay calm.
Possible outcomes:
- Confiscation of your cannabis.
- A Notice of Penalty Assessment from CBSA, with penalties based on the offence and its severity.
- Fines, and in the worst cases arrest.
- Exposure to U.S. law if your flight is diverted, as Halifax Stanfield notes.
What to do right away:
- Stay cooperative and calm.
- Ask for written documentation of any seizure or penalty.
- Contact a lawyer if you are detained.
- Keep your purchase proof and any medical documents.
- Reach out to consular services only when an international incident calls for it.
Why we say plan ahead, or skip carrying it
I care most about two things: keeping travellers compliant, and keeping them informed. Rules at airports and borders are strict for good reason, and most trouble happens when someone assumes “legal at home” means “legal everywhere.” It does not.
My honest view is that carrying cannabis on a plane is allowed, but it is rarely the easiest option. If your trip is short, if you are changing planes, or if the thought of screening makes you uneasy, leaving cannabis at home is a perfectly sensible choice. Many travellers find that ordering from a licensed retailer once they land is simpler than carrying anything through an airport.
Our guide to cannabis delivery in Canada walks through that option step by step.
— Nick
Prefer to skip carrying it? Order for delivery instead
If you would rather not take cannabis through an airport, we offer a lawful alternative. We offer delivery in Durham Region and the GTA, and we ship medical orders across Canada. You get a curated selection of craft cannabis, and we keep compliance front and centre.
- Check delivery windows and your local rules before you order.
- Browse flower, pre-rolls, vapes, edibles and more on our shop page.
- Read how our mail order cannabis service works.
FAQ
Can I bring a bong on a plane in Canada?
Yes, in many cases, but it must pass standard CATSA screening like any other item, and it should be clean and empty. Pack it carefully in checked baggage so it does not break. Rules for accessories can differ by airline, so check with yours before you fly.
Do I need to declare cannabis at the Canadian border?
Yes, if you are entering Canada with cannabis, you must declare it to CBSA, although taking it across the border is illegal in the first place. Failing to declare can lead to seizure, arrest and penalties of up to $2,000 CAD. The simplest approach is not to carry it across an international border at all.
Can I carry cannabis oil in my carry-on bag?
Yes, as long as it follows the liquids rules: containers of 100 ml or less, all fitting in one 1 L resealable bag, per CATSA. Larger containers go in checked baggage unless authorised for medical use.
Can I smoke or vape cannabis at the airport or on the plane?
No. Do not consume cannabis in airports or on aircraft. Wait until you have reached your destination and are somewhere the local rules allow it.
