Based on national guidance
Ottawa Macdonald-Cartier liquid rules: At Ottawa Macdonald-Cartier, liquids must be 100ml or smaller
- →Containers up to 100ml only
- →All liquids in one clear resealable bag of up to 1 litre
- →Take liquids out at security
Ottawa · Canada · IATA YOW · ICAO CYOW
At security
- Liquids up to 100ml per container
- Take liquids out into the tray
- Liquids must be in one clear resealable bag of up to 1 litre
- CATSA exempts baby food/drink for infants under 2, breast milk, and prescription or essential non-prescription medicines from the 100ml limit — declare them to the screening officer.
- Rules may differ at your destination airport
Max liquid
100 ml
Plastic bag
Required
Remove at security
Yes
Recorded source check
None yet
Source
CATSA (Canadian Air Transport Security Authority)
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At YOW · the three rule systems
Security · Airline · Border
Security
Will this pass the checkpoint?
LimitedOttawa Macdonald-Cartier: containers up to 100ml (exceptions: CATSA exempts baby food/drink for infants under 2, breast milk, and prescription or essential non-prescription medicines from the 100ml limit — declare them to the screening officer.).
Source: CATSA (Canadian Air Transport Security Authority)
Airline
Can this travel in cabin or checked baggage?
Airline-dependentYour airline's cabin-bag size and weight limits still apply on top of security rules.
Border
Can you bring this into the destination country?
UnknownCustoms and import rules depend on where you land and what you carry — this airport page doesn't cover them.
Three separate rule systems · Any one can stop your item
Before you fly home: check what you're bringing back
Some liquids are fine through airport security but restricted by customs, biosecurity, alcohol duty, medicine rules or destination law.
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More about Ottawa Macdonald-Cartier
Common "can I take…" questions
Related liquid-rule guides
Deeper reading for travellers flying from Ottawa.
Packing checklist for Ottawa Macdonald-Cartier
A short checklist for this trip — pack what you need to stay within the rules above.
Packing checklist
100ml travel bottles
Packing checklist
Clear toiletry bag
Packing checklist
Leakproof bottle pouch
Official sources cited where available; dates shown only for recorded checks.
Got a specific item or liquid? Check it for your route →Liquid Limits is a travel planning tool, not an official aviation source. Always check official airport or aviation security guidance before travel.