Can I Bring A Carry-On And A Backpack On WestJet? | Bag Rules

Yes, most fares let you board with one cabin bag plus one personal item, though UltraBasic usually limits you to a personal item.

If you’re flying WestJet and want to bring a roller bag plus a backpack, the answer is usually yes. The catch is that your fare type matters, your backpack has to count as the smaller personal item, and both pieces need to fit WestJet’s size rules. That last part trips people up.

WestJet’s standard setup is simple on paper: one carry-on bag goes in the overhead bin, and one personal item goes under the seat. A backpack can fill either role. A full-size travel backpack can count as your carry-on. A slim daypack or laptop backpack can count as your personal item. What you can’t do is treat two full-size bags as if one of them is “just a backpack.”

The biggest wrinkle is UltraBasic. On that fare, WestJet says you get one personal item only on most routes. If you show up at the gate with a carry-on bag when your ticket does not allow it, WestJet can check it and charge both a checked bag fee and a service fee. That can turn a cheap fare into a sour one in a hurry.

Can I Bring A Carry-On And A Backpack On WestJet? Rules By Fare Type

For Econo, Member Exclusive, EconoFlex, Premium, PremiumFlex, Business, and BusinessFlex, WestJet allows one carry-on bag and one personal item. That means a suitcase plus a backpack is fine if the backpack fits under the seat and the suitcase fits the carry-on sizer.

For UltraBasic, the rule is tighter. WestJet allows one personal item. A regular carry-on is not included on most flights. There are a couple of exceptions. UltraBasic guests traveling to or from Europe and Asia can bring one carry-on and one personal item. WestJet also allows that extra carry-on when Extended Comfort has been purchased for all flights in one direction, including connections.

That means the real question is not just “Can I bring both?” It is “What fare did I buy, and how large is my backpack?” If your backpack is bulky enough to live in the overhead bin, WestJet may treat it as your carry-on, not your personal item.

What WestJet Counts As A Carry-On

WestJet’s carry-on size limit is 56 x 23 x 36 cm, or 22 x 9 x 14 inches, including wheels and handles. The bag also has to be light enough for you to place it in the overhead bin on your own. WestJet does not publish a fixed carry-on weight limit on the current page. The test is whether it fits and whether you can lift it without help.

A carry-on can be a small suitcase, duffel, or larger travel backpack. If your backpack is packed out, thick front to back, and too tall to slide under the seat, it belongs in the carry-on category.

What WestJet Counts As A Personal Item

The smaller personal item must fit under the seat in front of you. WestJet lists the maximum size as 41 x 15 x 33 cm, or 16 x 6 x 13 inches. Common examples include a purse, crossbody bag, briefcase, camera bag, laptop bag, or a small backpack.

This is where plenty of travelers get caught. A school backpack can swing either way. If it is lightly packed, it may work as a personal item. If it is stuffed with clothes, shoes, and a toiletry bag, it may no longer fit under the seat. Gate agents care about fit, not what the label on the bag says.

How To Tell Whether Your Backpack Counts As Personal Item Or Carry-On

Use the under-seat test before you leave home. Fill the backpack the way you plan to travel with it. Then compare it against WestJet’s personal item limit. If it is close, measure the bag while it is full, not empty. Soft bags can fool you.

A backpack is usually safe as a personal item when it carries a laptop, charger, wallet, headphones, a book, and one light layer. Once you start adding packing cubes, extra shoes, or bulky camera gear, it often crosses into carry-on territory.

Also think about shape. A backpack that is short and flat can pass even if it looks wide. A tall hiking pack usually will not. WestJet’s seat space is not built for tall framed packs, and gate staff are not likely to be charmed by “it squishes.”

Signs Your Backpack Is Too Big For The Personal Item Slot

• It bulges more than 6 inches deep when zipped.
• It is too tall to sit upright under a seat.
• You need both straps and a chest clip just to compress it.
• It holds several days of clothing, not just flight essentials.
• You would be annoyed if another passenger tried to slide it under your seat area.

If any of those sound familiar, treat the backpack as your carry-on and make your second piece a smaller personal item.

WestJet Carry-On And Backpack Rules At A Glance

Item Or Fare	Allowance	What To Watch
Econo	1 carry-on + 1 personal item	Backpack is fine as either item if size matches its role
Member Exclusive	1 carry-on + 1 personal item	Same cabin bag rule as standard economy fares
EconoFlex	1 carry-on + 1 personal item	No special cabin bag cutback
Premium / PremiumFlex	1 carry-on + 1 personal item	Carry-on still must fit sizer and overhead bin
Business / BusinessFlex	1 carry-on + 1 personal item	Allowance stays the same even with roomier cabin service
UltraBasic	1 personal item	Regular carry-on is not included on most routes
UltraBasic to or from Europe or Asia	1 carry-on + 1 personal item	This is one listed exception on WestJet’s policy page
UltraBasic with Extended Comfort	1 carry-on + 1 personal item	Must be purchased for all flights in one direction
Carry-on bag size	56 x 23 x 36 cm	Includes wheels and handles
Personal item size	41 x 15 x 33 cm	Needs to fit under the seat

What Happens If You Bring Two Bags That Both Look Like Carry-Ons

That is where fees show up. WestJet says items that do not fit the sizing device or exceed the allowance are treated as checked baggage. On UltraBasic, that can sting even more because the airline says guests who arrive at the gate with a carry-on bag outside the listed exceptions will have to check it and pay a checked bag fee plus a service fee.

If you want to avoid that mess, make one item clearly smaller. A compact backpack under the seat and a standard roller up top is the cleanest pairing. A stuffed 40-liter backpack plus a duffel is the kind of combo that invites a sizing check.

There is also a practical side here. WestJet says your personal item should be stored under the seat and your carry-on should go in the overhead compartment. If both bags need overhead space, you are outside the spirit of the rule before anyone even measures them.

Why The Under-Seat Spot Matters

The under-seat rule is not just airline fussiness. It is what lets boarding move without half the cabin hunting for bin space. A slim backpack with trip basics works well there. Put the items you want during the flight in that bag: wallet, passport, medicine, earbuds, snacks, and your charging cable.

That split also helps if your carry-on gets checked at the gate. You still have your useful stuff with you, which is a lot better than digging for your passport while people stack bags behind you.

Security Rules Still Apply To Your Backpack

Even when your backpack qualifies as a personal item, security rules still sit on top of airline baggage rules. If you are departing from a Canadian airport, liquids, aerosols, and gels in your carry-on need to follow CATSA’s liquids rules. Containers must be 100 mL or less, and they must fit in one clear, resealable 1 L bag.

That matters for backpacks because travelers often load them with the small stuff: sunscreen, toothpaste, deodorant, skin care, or drinks grabbed on the way to the airport. WestJet may allow the bag on board, yet security can still pull items out before you ever reach the gate.

WestJet also points travelers to its own carry-on baggage page for size limits, fare exceptions, and the rule that cabin items must fit the sizer and be light enough to place in the bin without help. That is the page to check if you booked months ago and want the current wording before travel day.

Packing Setups That Usually Work Best

The smoothest setup on WestJet is one true carry-on and one true personal item. That sounds obvious, though it is where the smartest packing choices happen.

Setup One: Roller Bag Plus Slim Backpack

This is the easiest option for most travelers. Put clothes, shoes, and bulky items in the roller. Put your laptop, chargers, travel papers, medicine, and one layer in the backpack. It fits the airline’s bag logic and makes boarding simple.

Setup Two: Travel Backpack Plus Small Crossbody

If you hate wheeling a suitcase, use a travel backpack as your carry-on and pair it with a compact crossbody or laptop sleeve as the personal item. This works well when your backpack falls within WestJet’s 22 x 9 x 14 inch carry-on size.

Setup Three: Small Backpack Only

This is the safe play for UltraBasic on most routes. Pick one backpack that fits personal item limits and pack lean. You lose space, though you skip the risk of a gate fee.

Best Bag Pairings For Different WestJet Trips

Trip Type	Bag Pairing	Why It Works
Weekend city trip	Small roller + laptop backpack	Keeps clothes overhead and flight essentials at your feet
Business travel	Garment-friendly carry-on + slim brief backpack	Easy laptop access and neat under-seat fit
Family flight	Carry-on suitcase + shared diaper or snack backpack	Fast access to wipes, toys, and spare layers
UltraBasic solo trip	One compact backpack only	Matches the standard personal-item-only allowance
Longer carry-on-only trip	Travel backpack + small crossbody	Works well when the larger pack meets carry-on size

Smart Moves Before You Head To The Airport

Measure both bags while packed. Do not trust the product listing alone. Brands often list dimensions for an empty bag, and stuffed soft bags can gain an inch or two in a hurry.

Check your fare on the booking, not your memory of what you thought you bought. WestJet’s fare families are not all the same, and the cabin bag rule can change the math of a cheap ticket.

Pack your backpack like a personal item if that is the role you need it to play. Keep dense items low, avoid overstuffing front pockets, and leave room so the bag can flatten under the seat. A half-full backpack passes more gracefully than a bursting one.

Also, leave space for the airport shuffle. You may need to remove liquids, pull out a laptop, or tuck away a jacket. A bag that closes with no drama is a better travel companion than one that needs a wrestling match at security.

When The Answer Is Yes, But Only With Limits

So, can you bring a carry-on and a backpack on WestJet? Yes, in most fare classes you can. The backpack just has to count as your personal item, fit under the seat, and stay within WestJet’s size limit. If the backpack is too big, it becomes your carry-on, which means your second bag must shrink.

The one fare that needs extra care is UltraBasic. On that ticket, one personal item is the default on most routes. If you want to travel with both a carry-on and a backpack, check whether your route falls under the Europe or Asia exception or whether you have bought Extended Comfort for that direction of travel.

Pack with the sizer in mind, not your hopes. That is the move that keeps your trip easy, your bag at your feet, and your wallet away from gate charges.