What Are the New Rules for Carry-On Luggage in 2026?

The new rules for carry-on luggage in 2026 keep 22 × 14 × 9 inches (56 × 36 × 23 cm) as the most widely accepted maximum across major North American carriers, but stricter gate enforcement, airline-specific weight caps, and tightened restricted-item guidance mean the gap between "technically compliant" and "actually accepted at the gate" is narrower than it used to be. If you're flying out of Toronto Pearson this year, knowing exactly which airline you're on — not just the generic standard — is what saves you a gate-check fee.

What Is the New Size for Carry-On Luggage on Airlines in 2026?

The 22 × 14 × 9 inch benchmark still holds for most North American carriers, but 3 major airlines — Air Canada, WestJet, and United — actively use bin-sizers at high-traffic gates, meaning a bag that passes the published spec on paper can still fail if bulging pockets or a protruding handle push it past the physical gauge. Critically, every published dimension includes wheels and handles. That single detail accounts for a large share of the gate disputes we hear about from customers shopping at our Woodbridge and Vaughan stores.

Here's the thing: a bag labelled "22 inches" by its manufacturer is measured to the interior frame, not the outer shell with hardware. Air Canada's published max is 21.7 inches to the exterior. That 0.3-inch gap — less than 1 centimetre — is enough to fail a rigid polycarbonate corner against the bin-sizer. We recommend sizing down to a true 21-inch carry-on if Air Canada or WestJet is your primary carrier. Browse our carry-on luggage collection — every listing shows external dimensions so you can cross-reference against your airline's spec before buying.

New TSA Carry-On Guidelines: What Actually Changed?

TSA's core prohibited-items framework hasn't been overhauled in 2026, but its guidance on lithium batteries and power banks has been clarified and gate agents are applying it more consistently than in recent years. The 3-1-1 liquids rule — containers of 3.4 oz (100 ml) or less, in 1 clear quart-sized bag, 1 bag per passenger — remains unchanged. What tightened in practice: power banks over 100 Wh are being pulled from carry-ons more consistently at screening, per TSA's published lithium battery guidance (tsa.gov).

• Liquids (3-1-1 rule): 100 ml max per container, 1 quart-sized clear bag
• Lithium batteries: carry-on only — loose cells prohibited in checked bags
• Power banks: 100 Wh max without airline approval; 160 Wh absolute ceiling
• Aerosols: 100 ml max, must fit inside your 3-1-1 bag
• Scissors: blades under 4 inches allowed; knives of any length not allowed
• Food: solid food generally fine; gel or liquid foods (hummus, peanut butter) follow 3-1-1
• Firearms / ammunition: checked bag only, declared at check-in — never carry-on

One thing worth flagging for Canadian travellers specifically: CATSA (the Canadian Air Transport Security Authority) follows rules closely aligned with TSA but operates independently. Something that cleared a US airport is not automatically cleared at Toronto Pearson. The agencies share most standards, but don't assume identical enforcement.

What Are You Not Allowed in a Carry-On Bag?

The short answer: anything that functions as a weapon, anything flammable beyond the small-quantity exemptions, and any liquid over 100 ml. The full prohibited list runs long, but these are the items that generate the most gate-side surprises — the ones customers tell us about after the fact.

1. Knives of any blade length — including pocket knives and Swiss Army knife blades
2. Liquids or gels over 100 ml — full-size toothpaste, shampoo, bottled wine
3. Power banks over 160 Wh — banned from both carry-on and checked bags above this threshold
4. Firearms, ammunition, and realistic replicas — checked bag only, declared
5. Torch lighters — standard disposable lighters limited to 1 per person in carry-on
6. Oversized sporting equipment — golf clubs, hockey sticks, ski poles must be checked
7. Pepper spray / self-defence sprays — prohibited in carry-on; 1 small canister allowed checked

A question we get weekly: "Can I bring travel accessories like packing cubes or a luggage scale in my carry-on?" Yes — packing cubes, luggage scales, and TSA-approved locks are all fine. The lock confusion comes from this: non-TSA locks go in the carry-on too, but TSA will cut them if they need to screen the bag. Use a TSA-approved lock and they can open and relock without touching the hardware.

Can I Bring a Backpack and a Carry-On on Air Canada?

Air Canada's 2026 policy allows 1 standard carry-on plus 1 personal item in Economy — and a backpack qualifies as the personal item, provided it fits under the seat in front of you (Air Canada's personal item max is approximately 43 × 33 × 16 cm / 17 × 13 × 6 in). The enforcement is by fit, not by category name. A large hiking pack will not pass as a personal item regardless of what you call it at the gate.

Honestly, this is where the bag combination matters more than most people realize. We carry a range of travel backpacks sized specifically to meet personal item limits — Pacsafe anti-theft slings and daypacks, for example, sit well within under-seat dimensions while still carrying a full day's worth of gear. Pair one with a 21-inch carry-on spinner and you've covered virtually every North American carrier's two-bag allowance without any gate risk.

Business travellers flying weekly out of Pearson consistently tell us the personal item slot is more valuable than the overhead bin — it stays with you at your seat, accessible throughout the flight. A well-chosen laptop backpack or anti-theft sling in that slot keeps your work essentials within reach the entire flight.

New Rules for Carry-On Luggage International Flights: What's Different?

International carry-on rules add 2 layers that domestic travellers don't face: European budget carrier size restrictions that are dramatically smaller than the North American standard, and weight limits that US carriers don't publish at all. A bag that sails through every North American gate can be a paid gate-check on a Ryanair connection — and that catches GTA travellers every spring when transatlantic packages include a budget-carrier leg.

A few things that actually protect you at the gate on international routes:

• Hard-shell polycarbonate bags pass sizers cleanly — they don't compress or bulge under full packing
• Weight matters on European carriers — Air Canada and WestJet cap at 10 kg; Ryanair's free cabin bag has no overhead bin access without a paid upgrade
• Lighter bag shells leave more weight budget — a 2.8 kg shell on a 10 kg limit gives you 7.2 kg of packing room vs. 5.8 kg from a 4.2 kg shell
• Board early on high-load routes — Toronto–Vancouver, Toronto–Montreal, and transatlantic connections out of Pearson are routes where overhead bin space fills before boarding completes
• Check the specific airline on every leg — codeshare flights sometimes carry a partner airline's stricter size rules, not the one you booked with

The carry-on bags we stock at Luggage City range from about 2.8 kg to 4.2 kg empty — that's the weight you're starting from before a single item goes in. If you're planning a trip that includes a European budget carrier leg, stop by our Woodbridge or Vaughan store and we can measure your current bag against the sizer we keep on the floor, or help you find a carry-on sized to the strictest airline on your itinerary. What size carry-on actually works across every carrier on a mixed-airline trip? That's the question worth answering before you pack, not at the gate.

Frequently Asked Questions

Will Air Canada accept a 22 inch carry-on?

Air Canada's published maximum is 55 × 40 × 23 cm (approximately 21.7 × 15.7 × 9 inches), measured including wheels and handles. A bag labelled "22 inches" by its manufacturer may exceed this once the outer shell and hardware are measured. Check the external dimensions of your specific bag against Air Canada's published spec — not the manufacturer's interior measurement — before you travel.

What are you not allowed in a carry-on bag?

Prohibited carry-on items include knives of any blade length, liquids or gels over 100 ml (unless medically necessary), power banks over 160 Wh, firearms and realistic replicas, torch lighters, oversized sporting equipment, and pepper spray. The TSA's full prohibited-items list covers additional categories — when in doubt, check tsa.gov before packing.

What is the new size for carry-on luggage on airlines?

The most widely accepted maximum in 2026 remains 22 × 14 × 9 inches (56 × 36 × 23 cm) for North American carriers, but airline-specific limits vary. Air Canada caps at 21.7 × 15.7 × 9 inches; WestJet at 20.9 × 15 × 9 inches; European budget carriers like Ryanair allow as little as 15.7 × 7.9 × 9.8 inches in the free tier. Always check your specific airline's current published spec.

Can I bring a backpack and a carry-on on Air Canada?

Yes. Air Canada's Economy policy allows 1 standard carry-on (up to 55 × 40 × 23 cm, 10 kg) plus 1 personal item such as a backpack. The personal item must fit under the seat in front of you — Air Canada's personal item guideline is approximately 43 × 33 × 16 cm. A large hiking pack that exceeds under-seat dimensions will not qualify regardless of what it's called.

Do international carry-on rules differ from domestic rules in 2026?

Yes, significantly. European budget carriers enforce much smaller cabin bag dimensions — Ryanair's free-tier cabin bag maximum is 40 × 20 × 25 cm, well below the North American 22-inch standard. Many international carriers also enforce weight limits (typically 10 kg) that US carriers like Delta and American do not publish. Check every airline on your itinerary, including connecting legs, before packing.