Guide: Airline Carry-on Dimensions in Canada

When planning your trip, be sure to check the dimensions and weight of your carry-on baggage. So you can be aware of the size limits.
Before boarding, an agent may walk through the waiting area with a gauge, checking your carry-on bag. Especially for flights that are full. If your bag doesn’t fit easily into the gauge, the airline will ask you to check it at the gate.
To make sure you don’t forget anything for your trip, be sure to go through our ultimate list for travellers! You’ll find tips on how to travel light with your carry-on.
Note that these maximum dimensions include wheels, handles, and any protruding parts.
Size of Carry-on Suitcase or Backpack
Here are the maximum cabin baggage dimensions for Canada’s major airlines

Maximum Carry-on Baggage Size – Air Canada
The sizes for Air Canada are:
- Height: 55 cm (21.5 inches)
- Depth: 23 cm (9 inches)
- Width: 40 cm (15.5 inches)
Maximum Carry-on Baggage Size – Air Transat
The maximum sizes of the Air Transat carry-on are:
- Height: 51 cm (20 inches)
- Depth: 23 cm (9 inches)
- Width: 40 cm (15.5 inches)
Maximum Carry-on Baggage Size – WestJet
WestJet has changed the dimensions of the carry-on bag.
To allow time to adapt to the new cabin baggage dimensions, WestJet will accept baggage with the « previous » maximum dimensions as well as the « new » maximum dimensions until May 5, 2025.
For the time being and until May 5, 2025, WestJet will therefore accept the following sizes:
- Height: 53 cm (21 inches)
- Depth: 23 cm (9 inches)
- Width: 38 cm (15 inches)
As of March 13, 2025, WestJet will accept the following new dimension:
- Height: 56 cm (22 inches)
- Depth: 23 cm (9 inches)
- Width: 35.5 cm (14 inches)
Maximum Carry-on Baggage Size – Porter
Porter’s carry-on sizes are:
- Height: 55 cm (21.5 inches)
- Depth: 23 cm (9 inches)
- Width: 40 cm (15.5 inches)
Maximum Carry-on Baggage Size – Flair
The maximum cabin baggage weight is 10 kg or 22 lbs with Flair Airlines. The dimensions are:
- Height: 55 cm (21.5 inches)
- Depth: 23 cm (9 inches)
- Width: 40 cm (15.5 inches)
Maximum Carry-on Size – Sunwing Airlines
The maximum cabin baggage weight is 10 kg or 22 lbs with Sunwing. Then, the sizes are :
- Height: 51 cm (20 inches)
- Depth: 23 cm (9 inches)
- Width: 40 cm (15.5 inches)
Cabin Baggage Weight
With major carriers, there are no weight restrictions. But on board the aircraft, you must be able to lift and place your baggage or backpack in the overhead compartments yourself, without assistance from crew members.
How to Get Free or Discounted Checked Baggage
Still don’t want to pay for checked baggage? The trick is to hold those credit cards and get it for free:
- Air Canada: first checked bag free for the primary cardholder of an eligible Aeroplan credit card (such as the TD® Aeroplan® Visa Infinite* Card) and up to 8 passengers traveling on the same reservation.
- Porter Airlines: a free first checked bag and a free carry-on bag on all Porter flight fares with the BMO VIPorter World Elite Mastercard, for you and up to 8 travel companions on the same booking.
- WestJet: first checked baggage for the cardholder. WestJet RBC® World Elite Mastercard on WestJet flights from and up to 8 guests travelling on the same reservation.
- All airlines: $150 annual travel credit to reimburse baggage charges on any airline, thanks to the National Bank World Elite Mastercard
Conclusion
Each airline applies different and specific dimensions regarding authorized sizes and weights.
In addition to following these rules, also make sure your luggage is functional, light and easy to maneuver for comfort.
Safe travels!
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What is Air Canada’s carry-on baggage size?
The dimensions are:
- Height: 55 cm (21.5 inches)
- Depth: 23 cm (9 inches)
- Width: 40 cm (15.5 inches)
How do you know if your suitcase will fit in the cabin with airlines such as United Airlines, Delta, British Airways, Lufthansa, etc.?
Information can be found in the booking documents or read the special section on this subject on the airline’s website.
For example, the policy for cabin baggage and personal items (also known as carry-on baggage) for United Airlines can be found here, and the one for Lufthansa is on its website.
For airlines in Canada, see above.
What is Air Transat’s carry-on baggage size?
The dimensions are:
- Height: 51 cm (20 inches)
- Depth: 23 cm (9 inches)
- Width: 40 cm (15.5 inches)
What hand baggage is allowed in the aircraft cabin?
Hand luggage is also called a personal item by some airlines. It is also subject to size restrictions, as it must fit comfortably under the seat in front of you on the plane. It can be a handbag, a coat, a baby diaper bag or a small backpack.
What is WestJet’s carry-on baggage size?
For the time being and until May 5, 2025, WestJet will therefore accept the following sizes:
- Height: 53 cm (21 inches)
- Depth: 23 cm (9 inches)
- Width: 38 cm (15 inches)
As of March 13, 2025, WestJet will accept the following new dimension:
- Height: 53 cm (22 inches)
- Depth: 23 cm (9 inches)
- Width: 38 cm (14 inches)
WestJet has recently changed the dimensions of carry-on baggage.
To allow time to adapt to the new cabin baggage dimensions, WestJet will accept baggage with the « previous » maximum dimensions as well as the « new » maximum dimensions until May 5, 2025.
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