What is the size of a carry-on bag in Canada?
A standard carry-on bag in Canada measures 55 × 40 × 23 cm (21.5 × 15.5 × 9 inches), wheels and handles included, primarily because Air Canada and WestJet — the two carriers covering the vast majority of Canadian routes — both publish this footprint as their overhead-bin maximum. A second personal item is also permitted, capped at 33 × 43 × 16 cm (13 × 17 × 6 inches). Buy a bag that exceeds either limit and you are looking at a gate-check fee before you reach the jetway.
What are the exact carry-on dimensions for Canada's major airlines?
Air Canada's carry-on limit is 55 × 40 × 23 cm / 21.5 × 15.5 × 9 in, wheels and handles included, with no published weight limit — your bag must fit in the overhead bin without assistance. WestJet revised its policy effective May 6, 2025, setting a new maximum of 56 × 36 × 23 cm / 22 × 14 × 9 in, also including wheels and handles. Those specs look close, but a bag that clears WestJet may be 1 cm too tall for Air Canada — a gap that matters on mixed-carrier itineraries.
| Airline | Carry-on max (cm) | Carry-on max (in) | Personal item max (cm) | Weight limit |
|---|---|---|---|---|
| Air Canada | 55 × 40 × 23 | 21.5 × 15.5 × 9 | 33 × 43 × 16 | None published |
| WestJet (from May 6 2025) | 56 × 36 × 23 | 22 × 14 × 9 | 23 × 33 × 43 | None published |
| Porter Airlines | 53 × 38 × 23 | 21 × 15 × 9 | 43 × 33 × 16 | 10 kg / 22 lb |
| Flair Airlines | 41 × 34 × 15 | 16 × 13 × 6 | Not included on base fare | 7 kg / 15 lb |
| Swoop (merged) | Now under WestJet policy | — | — | — |
Ultra-low-cost carriers like Flair apply much tighter limits and charge for carry-on bags on base fares. If you fly a mix of Air Canada and budget carriers on the same trip, size to the most restrictive airline — not the most permissive one. That single rule prevents most gate-check surprises we hear about.
How does the 55 cm rule translate to bag sizes sold in stores?
Most carry-on luggage sold in Canada is labeled by its interior or nominal size, not its total exterior footprint with wheels and handles attached. A bag marketed as a "21-inch carry-on" typically measures 21 inches from wheel base to shell top — add the retracted handle and you can hit 24–25 inches total (61–63 cm), which clears Air Canada's 55 cm height limit by a worrying margin.
Here is what the nominal sizing actually means at the shelf:
- 20-inch nominal bags — exterior typically 51–53 cm; safe buffer for all Canadian carriers
- 21-inch nominal bags — exterior often 54–56 cm; check the spec sheet before buying
- 22-inch nominal bags — exterior often 56–58 cm; usually too tall for Air Canada
- Personal item / underseat bags — aim for 40 × 30 × 15 cm to clear every airline
- Expandable carry-ons — measure in the unexpanded state; expanded they will be checked
Honestly, the safest move is to measure the bag with the handle retracted and the wheels on the floor. We do that for every customer who asks — 30 seconds, saves a $65 gate-check fee. Our carry-on luggage collection lists verified exterior dimensions including wheels and handles on every product page, so you can cross-reference before you buy.
What are the new rules for carry-on luggage in 2025–2026?
Two policy changes matter most for Canadian travelers right now. WestJet cut its carry-on width from 16 inches to 14 inches on May 6, 2025 — a 2-inch reduction that invalidates bags bought under the previous spec. Air Canada's Economy Basic fare (purchased on or after January 3, 2025) no longer includes a standard carry-on on domestic Canada, U.S., Mexico, Central America, and Caribbean routes; those tickets permit only one personal item. Connecting onward to a transatlantic or transpacific flight on the same booking restores the full carry-on allowance.
What does that mean on a real itinerary? A traveler flying Air Canada Economy Basic YYZ → LAX gets only a personal item. The same traveler on Economy (not Basic) still gets one carry-on plus one personal item. That fare-class distinction has caught many GTA travelers off guard since January 2025 — it is the question we field most often at our Woodbridge store right now.
What to know before buying a carry-on for Canadian routes
Sizing rules are the floor, not the ceiling. A bag can be perfectly within spec and still be the wrong choice for your travel pattern. Three factors compound the decision beyond raw centimeters: shell type, weight, and enforcement variability.
Hard-shell vs. soft-shell and compliance. Polycarbonate hard-shell bags have fixed dimensions — what you see is what you get. Soft-shell bags with expansion zippers can look compliant on the shelf but add 5–8 cm when packed, pushing them over the limit at the gate. We carry hard-shell carry-ons from Samsonite, Briggs & Riley, and Aleon where the exterior spec is printed on the tag. No guesswork, no surprises.
Weight matters on some routes. Air Canada publishes no weight ceiling for carry-on bags, but Porter caps carry-on weight at 10 kg. A lighter shell gives you more packing room before you hit any weight limit. Aleon's aluminum carry-ons weigh roughly 3.6 kg empty; a polycarbonate Samsonite Winfield 3 starts at about 3.2 kg; Briggs & Riley's Baseline carry-on comes in around 3.4 kg with its compression system. Browse our full luggage range with shell-weight specs if you mix carriers regularly.
RFID and TSA locks. Canadian airports use CATSA screening, which accepts the same TSA-approved locks used in U.S. airports. An RFID-blocking lining in your personal item protects passport chips and credit cards — a feature we see strong demand for among business travelers flying through Pearson. Our travel accessories section carries RFID pouches and TSA-lock sets if your current bag lacks them.
Enforcement variability. Air Canada states all carry-on rules are strictly enforced and oversized bags will be checked with applicable fees. In practice, enforcement varies by route and how full the flight is. During summer peak travel — June through August — overhead bins on popular GTA departures fill fast, and gate agents are less lenient. Planning around the rule, not around hoped-for leniency, is the only reliable strategy.
Buying online vs. in store. The biggest risk with buying a carry-on online is relying on nominal size labeling rather than verified exterior dimensions. At our Woodbridge and Vaughan Promenade stores, we measure every bag on the floor before it leaves the shelf. If you shop at Luggage City online, use the exterior dimensions listed on each product page — not the model name's inch designation — to confirm compliance.
FAQ: carry-on size in Canada
- How big can a carry-on bag be in Canada?
- The standard Canadian carry-on maximum is 55 × 40 × 23 cm (21.5 × 15.5 × 9 inches), including wheels and handles, per Air Canada's published policy. A personal item is permitted alongside it at up to 33 × 43 × 16 cm. WestJet's updated May 2025 spec is 56 × 36 × 23 cm — slightly narrower in width than Air Canada's limit.
- What are the new rules for carry-on luggage in 2026?
- The most significant recent changes are WestJet's May 2025 carry-on resize to 56 × 36 × 23 cm and Air Canada's January 2025 Economy Basic policy removing carry-on privileges on domestic, U.S., Mexico, and Caribbean routes. No further major dimension changes have been announced for 2026 as of this writing.
- What toiletries are not allowed on a plane?
- CATSA rules prohibit liquids, gels, and aerosols over 100 ml (3.4 oz) in carry-on bags. Each container must be 100 ml or under, all containers must fit in a single 1-litre clear resealable bag, and one bag per passenger is allowed. Items that alarm screening equipment are not permitted regardless of size.
- How strict is WestJet with carry-on size?
- WestJet updated its carry-on dimensions effective May 6, 2025 to 22 × 14 × 9 inches (56 × 36 × 23 cm) including wheels and handles, and announced it would add physical sizers at gates. Travelers with bags bought under the old wider spec should measure before flying — the 2-inch width reduction catches many older 22-inch bags.
- What is the size limit for a personal item on Air Canada?
- Air Canada's personal item maximum is 33 × 43 × 16 cm (13 × 17 × 6 inches), wheels and handles included. It must fit under the seat in front of you. On Economy Basic fares for domestic, U.S., Mexico, and Caribbean routes (purchased on or after January 3, 2025), this personal item is the only bag permitted in the cabin.
Still unsure which carry-on fits every airline you fly? Browse our full range of carry-on luggage — every listing includes verified exterior dimensions including wheels and handles — or visit our Woodbridge or Vaughan Promenade store and we will measure your options on the spot. Our team at Luggage City handles sizing questions every day and can match you to a bag that clears every Canadian carrier you fly.
