One Case, Three Sizers: We Took a Single Cabin Bag to the Gate Against Ryanair, easyJet and Jet2
Photo: Tim Walker from United Kingdom, CC BY 2.0, via Wikimedia Commons
There's a particular flavour of dread that comes from standing at a gate at Stansted at 6am, watching a member of cabin crew eye up your bag like a customs officer at a smuggling trial. If you've flown Ryanair, easyJet or Jet2 in the last few years, you'll know the feeling. Each airline has its own rules, its own sizer cage, and its own enthusiasm for enforcing them.
So we asked a simple question: can one bag satisfy all three without forking out for priority boarding every single time? We took a compact 40x20x25cm case on a tour of departure gates to find out.
The Rules, On Paper
Before the gate theatre, here's what the airlines officially say for free hand luggage:
| Airline | Free bag (must fit under seat) | Dimensions | Weight limit |
|---|---|---|---|
| Ryanair | 1 small bag | 40 x 20 x 25cm | None stated |
| easyJet | 1 small bag | 45 x 30 x 40cm... see below | 15kg |
| Jet2 | 1 small bag | 40 x 30 x 20cm | 10kg |
EasyJet is the confusing one. Officially you get one 'small cabin bag' of 45 x 36 x 20cm maximum, and it must go under the seat in front. Jet2's small bag allowance is 40 x 30 x 20cm — roomier in one direction, tighter in another — plus a generous 10kg weight cap. Ryanair's famous 'personal bag' is the strictest of the three: 40 x 20 x 25cm and no weight limit, which sounds liberating until you try to lift it.
The maths is brutal. Ryanair's 20cm depth is the binding constraint. If your case fits Ryanair, it almost certainly fits the others. The reverse is emphatically not true.
The Gate Test
Our test case was a soft-shell number measuring 40 x 20 x 24cm with a squishy front pocket — a deliberate choice, because soft cases can breathe and flex in a way that hard shells can't.
Ryanair (Stansted): The sizer came out for maybe one in ten passengers, but the crew were watching shapes rather than measuring. Our bag slid in with a centimetre to spare. A fellow traveller's bulkier backpack did not, and he paid £55 at the gate. Lesson: Ryanair's enforcement is random in frequency but merciless in outcome.
easyJet (Gatwick): Arguably the friendliest of the three. The 45 x 36 x 20cm allowance gives you more width than Ryanair, and we saw no sizers deployed at all. Gate staff seemed to care mainly that bags weren't obviously wheeled suitcases masquerading as totes.
Jet2 (Manchester): The wildcard. Jet2's 10kg weight limit is the only one of the three, and while we didn't see anyone weighed, the 40 x 30 x 20cm sizer is a genuine fixture at Jet2 gates. Our bag fit fine, but a wider tote-style bag wouldn't have.
Picking the One-Bag-Fits-All Case
If you want a single case that survives all three airlines without paying for priority, here's the shortlist of rules:
- Stay under 40 x 20 x 25cm. Ryanair is the strictest, so build to their spec and the rest take care of themselves.
- Go soft-shell. A little flex at the seams has saved us more than once at an over-zealous sizer.
- Weigh it empty. Jet2's 10kg cap arrives faster than you think once you've packed a weekend's worth of kit.
- Skip the wheels-outside design. Protruding wheel housings are the most common reason a 'compliant' case fails the box.
- Keep the weight in the back panel. A case that tips forward looks bigger than it is, and crew notice.
Do You Actually Need Priority Boarding?
Honestly? Only if your bag doesn't comply. If you're flying with a genuine under-seat case, priority is buying you nothing except boarding first and getting the overhead bin of your choice. On a full Ryanair flight from Luton, gate-checked bags were rare because most passengers had already paid for priority — the compliant-bag crowd breezed through.
Where it does matter: if you're carrying a camera bag and a case, or you're tall and genuinely need the legroom that an under-seat bag eats into. For everyone else, a 40 x 20 x 25cm case and a bit of discipline is the cheaper path.
The Verdict
One bag really can rule all three airlines — but it has to be built to Ryanair's unforgiving dimensions, not easyJet's roomier ones. Buy to the strictest sizer, keep it under 10kg for Jet2's sake, and you'll never have that 6am gate negotiation again. Your wallet, and your blood pressure, will thank you.
