Does the Peak Design Travel Backpack 45L fit Air Canada's carry-on?

No. Too long by 1 cm. It's 56 cm top to bottom and Air Canada allows 55 cm. It's too big for Air Canada's personal item (13 cm too long). On Air Canada's cheapest fare the carry-on costs extra.

Won't fit

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Side the bag fails onPart that sticks outSizer frame

Won't fit

Too long by 1 cm. It's 56 cm top to bottom and Air Canada allows 55 cm.

BagPeak Design Travel Backpack 45L

Cabin bagAir Canada

Length: 56of 55 cm1 cm over
Width: 33of 40 cm7 cm spare
Depth: 23of 23 cmExact fit

WeightNo published limit on Air Canada

Packed weightkg

Gate staff can still refuse a bag you can't lift into the bin yourself.

What you can do

Take a bag 55 cm tall or less. 8 bags we list fit.
Or check it in when you book. It's usually cheaper than paying at the gate.
Fits 4 other airlines, including Singapore Airlines and Frontier Airlines. See all

We haven't checked this bag's size against the brand yet.

See bags that fit Air Canada

Air Canada rules checked 2 Nov 2026. Airline's page. Sizes include wheels and handles.

Side by side

Peak Design Travel Backpack 45L against Air Canada's limits. Bags can be turned, so the longest side is compared with the longest limit.

Carry-on: 55 × 40 × 23 cm
Side	Bag	Limit	Result
Length	56 cm	55 cm	1 cm over
Width	33 cm	40 cm	7 cm spare
Depth	23 cm	23 cm	Exact

Personal item: 43 × 33 × 16 cm
Side	Bag	Limit	Result
Length	56 cm	43 cm	13 cm over
Width	33 cm	33 cm	Exact
Depth	23 cm	16 cm	7 cm over

Air Canada rules worth knowing

Carry-on: Economy Basic within Canada, the US, Mexico and the Caribbean is personal item only. Included on other fares.
Air Canada uses automated bag sizers at some airports.

Airlines where the Peak Design Travel Backpack 45L fits

Singapore Airlines Frontier Airlines Southwest Airlines AirAsia All airlines

Bags that fit Air Canada's carry-on

Biggest first.

Rimowa Essential Cabin55 × 39 × 23 cmTightExact fitBag page
American Tourister Soundbox Spinner 5555 × 40 × 20 cmTightExact fitBag page
Horizn Studios H5 Cabin Luggage55 × 40 × 20 cmTightExact fitBag page
Samsonite C-Lite Spinner 5555 × 40 × 20 cmTightExact fitBag page

Good to know

What can I do if the Peak Design Travel Backpack 45L is too big for Air Canada?

Add a checked bag when you book, which is usually cheaper than paying at the gate, or bring a smaller carry-on. The Peak Design Travel Backpack 45L does fit Singapore Airlines, Frontier Airlines and Southwest Airlines.

What is Air Canada's carry-on size limit?

Air Canada's carry-on limit is 55 × 40 × 23 cm, with no published weight limit.

Which other bags fit Air Canada?

Rimowa Essential Cabin, American Tourister Soundbox Spinner 55, Horizn Studios H5 Cabin Luggage and Samsonite C-Lite Spinner 55 are right on the limit, so don't overpack.