Keeping track of what hand luggage rules apply on uk budget airlines is genuinely confusing — because every airline has different dimensions, different weight policies, and different levels of enforcement, and getting it wrong costs £40-48 at the gate. I’ve watched the gate-bag-charge drama unfold in front of me more times than I can count.

Here’s the current state of play for the main budget airlines, plus the packing strategy that keeps you within the free allowance every time.

What hand luggage rules apply on UK budget airlines?

Ryanair: one free small bag, 40x20x25cm, must fit under the seat in front. No weight limit published, but it must fit in the sizer. Want a larger cabin bag (55x40x20cm, 10kg)? That’s Priority + 2 cabin bags, paid extra. easyJet: one free under-seat bag, 45x36x20cm, max 15kg — slightly more generous dimensions than Ryanair. Larger cabin bag (56x45x25cm) requires Up Front, Extra Legroom seats, or the Plus fare. Jet2: one free cabin bag 56x45x25cm up to 10kg — notably generous, the large bag is free. Plus a small under-seat personal item. Wizz Air: one free small bag 40x30x20cm under the seat; larger cabin bag (55x40x23cm, 10kg) is the paid Wizz Priority. The pattern: the free bag is always the small under-seat one (except Jet2), and the generous cabin bag always costs extra (except Jet2). Enforcement varies: Ryanair is strictest at the gate, especially on full flights; easyJet checks at the bag drop and gate; all of them enforce hardest when the flight is full and overhead space is scarce. When in doubt, measure your bag at home against the dimensions — a tape measure now beats a £48 surprise later. For packing to fit these limits for a full week, packing only hand luggage for a week in Europe is the masterclass.

Choosing and packing the bag

The right bag matters more than packing skill. For the free under-seat allowance, a soft backpack beats a rigid case — it squishes into the sizer and under the seat, and it doubles as your day bag on the trip (see travel with just a backpack comfortably for backpack-only travel). Look for bags marketed with the specific airline’s dimensions; several brands make “Ryanair cabin bag” or “easyJet underseat” models that are exactly compliant. Packing strategy: wear your bulkiest items (boots, jacket, jeans), use the 5-4-3-2-1 rule as a starting point (5 tops, 4 bottoms, 3 shoes… adapted down for the small bag), roll don’t fold, and decant toiletries into 100ml bottles — the liquids rule still applies (100ml max, clear bag, though new scanners are rolling out). Keep valuables, documents and a change of essentials in the personal bag, because even compliant bags occasionally get gate-checked on full flights. And remember the liquids and security rules are separate from airline policy — check the airport’s guidance too. For choosing the bag itself, the best carry on bags for budget airline limits compares the best carry-on options.

Hand luggage rules cheat sheet

  • Ryanair free: 40x20x25cm under-seat. easyJet free: 45x36x20cm, 15kg max. Jet2 free: 56x45x25cm, 10kg — most generous.
  • Wizz Air free: 40x30x20cm under-seat. Larger cabin bags cost extra on all but Jet2.
  • Measure at home with a tape measure: “looks about right” is how £48 gate fees happen.
  • Soft backpacks beat rigid cases for the free allowance: they squish into sizers and double as day bags.
  • Wear the bulky stuff: boots, jacket and jeans on your body don’t count against the bag.
  • Liquids: 100ml max in a clear bag (new scanners are changing this — check your airport).
  • Keep essentials on you: documents, valuables and a change of clothes in the personal bag in case of gate-checking.

Hand luggage mistakes

  • Assuming all airlines match. Ryanair’s 40x20x25 and easyJet’s 45x36x20 are different — the wrong bag gets charged.
  • Buying the bigger bag allowance “just in case”. If you can pack to the free limit (you usually can), it’s pure waste.
  • Forgetting the sizer is the judge. It doesn’t matter what the tag says — if it doesn’t fit the sizer, you pay.

When the rules change (and they do)

Budget airline baggage rules change regularly — dimensions shrink, allowances restructure, new fare tiers appear. Staying current is part of the game. Before every trip, check your airline’s baggage page (not a blog, not last year’s memory — the airline’s current page). Screenshot the allowance when you book; if the airline tries to charge differently at the gate, the screenshot is evidence. Join the airline’s email list for your most-flown carrier — rule changes are announced there first.

The trend to watch: the free allowance keeps shrinking while the paid tiers multiply. Ryanair’s free bag has shrunk twice in a decade; easyJet’s ‘free’ large cabin bag became a paid extra. The direction is clear: the future is pay-for-everything, with the base fare as pure seat-only transport. The counter-strategy is the same as ever: pack to the free allowance (it’s still generous enough for a week with the capsule method), own a compliant bag, and never pay for what you can avoid. And keep a tape measure in your travel kit — the £2 tool that has saved travellers thousands in gate fees. The rules will keep changing; the travellers who check, measure and pack light will keep flying free of fees regardless.

Worth bookmarking for more detail: hand luggage rules by airline.

Frequently asked questions

What happens if my hand luggage is too big?
At best, you’re charged the gate bag fee (£40-48) and it’s put in the hold. At worst on full flights, plus the stress and delay. Measure beforehand.

Do budget airlines weigh hand luggage?
Rarely for the free under-seat bag (easyJet’s 15kg limit is seldom checked), but the sizer test is common. Dimensions matter more than weight.

The rules differ by airline but the strategy is universal: know your airline’s exact free dimensions, measure your bag at home, pack soft and light, and wear the bulky stuff. Do that and you’ll never pay a gate fee — and you’ll travel lighter and faster than everyone queuing at the carousel. For the week-long packing method, packing only hand luggage for a week in Europe takes it further.