Air Transat Carry On Size

Checked against the airline on 4 Sep 2026Official source

Air Transat allowance at a glance

BagMaximum sizeMaximum weightNotes
Carry-on21.5×15.5×9 in55x40x23 cmNo stated limitNo published weight limit for carry-on bags, only size.
Personal item17x12x5 in43x31x13 cmNo stated limitOne personal item per passenger, must fit under the seat, no published weight limit.
Checked bag62 in158 cm51 lb23 kg

This page goes deeper on one part of the policy. The full record is at Air Transat Baggage Rules.

Air Transat’s carry-on box is 55 x 40 x 23 cm, or 21.5 x 15.5 x 9 inches. That includes the wheels and the handle. There is no published weight cap on that bag, only the size.

Air Transat carry-on size rules stop there on paper. The fare you booked and the gate you board from decide how strictly that box actually gets checked. This is where a lot of travelers get caught out, and it is worth reading the full Air Transat baggage rules alongside this page before you pack.

That box is close to the standard many European and Asian carriers use. It is narrower than the 22 x 14 x 9 inch box most US airlines apply. A bag built for a domestic US carrier can be too tall or too wide for Air Transat, even if it clears security back home.

How strictly the sizer gets used

Air Transat states plainly that cabin bags outside the authorized dimensions get checked. Fees get added at that point instead of being waived. Nobody gets a warning first.

Travelers on transatlantic routes report gate staff pulling bags for a size check on tight flights. This happens even to bags that would otherwise pass. It comes down to how full the overhead bins already are.

A bag sitting right at 21.5 inches has less margin than the number suggests. It can look fine on a bathroom scale at home. It can still get flagged once the wheels and the extended handle are part of what the gate agent sees.

Where the fare family muddies the picture

Air Transat sells Eco Budget, Eco Standard, Eco Plus and Club Class fares. The carry-on allowance is not laid out on one static page across all four. The airline routes travelers to its own flight specific baggage checker instead of publishing a single table.

That checker gives an answer tied to the exact flight you search. This is the part of Air Transat carry-on size policy that trips people up. Two travelers on the same route can see different answers depending on fare class and booking date.

Run your own itinerary through the airline’s baggage information page before you pack. Do not trust a number a friend quotes from an old booking. Fare rules on Air Transat change more often than the printed dimensions do.

The personal item and what happens at the gate

The personal item box is 43 x 31 x 13 cm, or 17 x 12 x 5 inches. It is one per passenger, again with no published weight limit. It has to fit under the seat in front of you.

The carry-on goes in the overhead bin. The personal item goes under the seat. Both get checked against Air Transat carry-on size limits at boarding on a full flight.

When a carry-on fails the gate check, Air Transat checks it. If that bag also breaks the checked weight or size limits, the overweight and oversize fees apply on top.

The overweight band runs CA$100 or US$100 for a bag between 23 and 32 kg. The oversize band is the same CA$100 or US$100 for anything up to 292 cm or 115 inches in linear measurement.

Bags that fit the box

A tape measure matters more here than on a US domestic flight, because Air Transat’s box is narrower than the American standard. Run any bag you already own through the size checker before you fly, not after a gate agent stops you. A few carry-ons on the market are built closer to this international shape.

BagBuilt forHow it sits against Air Transat’s box
Delsey Paris Helium Aero 19 inch international carry-onTighter European and Asian limitsSized for the narrower international standard, so it clears with more margin than a US style 22 inch case
SwissGear 7366 hardside 19 inchSmaller international binsA 19 inch hardside built to clear both the foreign limits and the US box
Kenneth Cole Reaction Out of Bounds 20 inchStrict sizers generallyAn inch shorter than most 20 inch cases, which helps against a narrower box like this one
Samsonite Freeform 21 inch hardside carry-onAirlines that weigh the cabin bagSamsonite’s lightest hardside, worth checking against the height cap since 21 inches sits close to the 21.5 inch limit

Not every popular bag belongs on that list. The Wrangler Smart Spinner 22 inch carry-on with cup holder sits at the top of the US size limit. It runs a full inch over Air Transat’s height cap before the cup holder and phone slot add any extra bulge.

Measure any bag with a Komelon tape measure rather than trusting the size printed on the tag. Manufacturers round differently than airlines do, and Air Transat carry-on size limits leave little room for that gap.

How Air Transat compares to other Canadian carriers

Air Transat’s box is close to what Air Canada’s carry-on size allows. Both sit near what WestJet’s carry-on rules permit. A bag bought for one Canadian carrier will usually survive a switch to another.

The bigger risk on Air Transat is the fare gap, not the box itself. Basic fares on plenty of airlines cut the free carry-on down to a personal item only. Air Transat’s basic economy carry-on rules are worth checking against your specific fare before you book.

Know your rights if a gate agent flags your bag. Air Transat’s own gate check and sizer process gives airlines wide discretion. Pushing back rarely works once the agent has decided the bin space is gone for that flight.

What to pack for the fee bands

If your bag does end up going in the hold, know the numbers before you get to the counter. A bag between 23 and 32 kg costs CA$100 or US$100 in overweight fees. A bag past 292 cm or 115 inches in linear measurement costs the same CA$100 or US$100 in oversize fees, on top of whatever checked bag fee applies to your fare.

An Etekcity digital luggage scale at home settles the weight question before you leave, so a gate check does not turn into an overweight charge as well. It is a five minute check that avoids a fee that can run into the hundreds once both bands stack.

The bottom line

Air Transat’s published carry-on box is 21.5 x 15.5 x 9 inches with no weight limit. It is straightforward on paper and narrower than the US standard in practice. Confirm your specific fare’s carry-on allowance before you fly, and measure your bag against the international shape rather than the US one.

Common questions

How big can my carry-on be on Air Transat?

Air Transat allows a carry-on up to 55 x 40 x 23 cm, or 21.5 x 15.5 x 9 inches, wheels and handle included, with no published weight limit.

Does Air Transat weigh carry-on bags?

Air Transat does not publish a weight limit for carry-on bags, only a size limit, though gate staff can still check a bag that will not fit in the sizer.

What size is the Air Transat personal item?

The personal item allowed under the seat is 43 x 31 x 13 cm, or 17 x 12 x 5 inches, one per passenger.

Does every Air Transat fare include a free carry-on?

The carry-on allowance varies by fare family and Air Transat shows the exact allowance through its flight specific baggage checker rather than one table for every fare.

What happens if my carry-on does not fit at the Air Transat gate?

Air Transat checks the bag, and if it also exceeds the checked weight or size limits, overweight or oversize fees of CA$100 or US$100 apply.

Is a 22 inch carry-on too big for Air Transat?

Yes, a 22 inch case runs a full inch over Air Transat’s 21.5 inch height limit, so it can be pulled at the gate even though it clears many US airline sizers.

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