Flying Within Canada With Cannabis: CATSA Rules and Limits to Check
The short answer: CATSA permits screening carriage
The Canadian Air Transport Security Authority (CATSA) lists cannabis as allowed in both carry-on and checked baggage. This is a screening answer, not a blanket travel clearance. You remain responsible for meeting the law where you depart and arrive, including public-possession limits and minimum-age rules.
Carry-on and checked baggage
CATSA's cannabis page says both baggage types are allowed. For non-medical cannabis, Canada's general public-possession ceiling is up to 30 grams of legal dried cannabis or its equivalent; the Cannabis Act and provincial or territorial rules still govern whether that limit applies to you. CATSA's page does not state that 30 grams is an airline-specific allowance. Keep international crossings out of any domestic itinerary assumption.
Medical cannabis oil and liquid limits
CATSA says medical cannabis oil over 100 mL may be carried on when used for medical purposes; present it to the screening officer at the checkpoint. Oil at or below 100 mL goes in the 1-litre clear liquids bag. Recreational liquid and topical products in carry-on baggage follow the same liquids, aerosols and gels rules. Confirm the live CATSA page before travel.
Domestic rules are not international permission
CATSA states that flying outside Canada with cannabis is illegal. Domestic airport screening permission does not authorize crossing a border. For the separate border rule, see CBSA's cannabis border guidance. CATSA's public page was last modified in December 2022, so recheck it and your carrier's current terms.
Quick FAQ
Can cannabis go in carry-on or checked baggage on a Canadian domestic flight?
CATSA lists both as allowed. You must still follow destination law and applicable possession limits.
Can I take cannabis oil over 100 mL through screening?
CATSA allows medical cannabis oil over 100 mL under its stated conditions: it must be for medical purposes and presented to the screening officer. Other liquid rules may apply.
Can I take cannabis on an international flight from Canada?
CATSA says flying outside Canada with cannabis is illegal. This page does not assess narrow permit exceptions or destination-country law.
Sources
- CATSA: Cannabis (marijuana) -- directly read 2026-09-24; lists carry-on/checked permission and liquid/medical oil directions; page says last modified 2022-12-22.
- Justice Canada: Cannabis Act, section 8 -- directly read 2026-09-24; adult public-possession ceiling is 30 g dried cannabis or equivalent, subject to law.
- CATSA: Medication and medical items -- current CATSA travel overview.
Verify the CATSA page, destination rules, and carrier policy before travel. This article does not cover diversions or border authorizations.