Ryanair Underseat Bag Size 2026: Free Bag Is 40×30×20cm

Nothing causes more airport stress than a bag that doesn’t fit the sizer, and Ryanair’s free personal bag allowance is strictly 40 × 30 × 20 cm. This guide explains what the rules mean, where confusion lies, and how to pack without surprises.

Underseat bag size: 40 × 30 × 20 cm ·
Free allowance: 1 small personal bag per passenger ·
Priority 10 kg cabin bag: 55 × 40 × 20 cm, up to 10 kg ·
Placement: Under the seat in front of you

Here is a quick reference of the key dimensions and rules.

What does 40 × 30 × 20 mean?

Those three numbers are the length, width, and height of the free personal bag in centimetres. The bag must be able to slide into a metal sizer at the airport — if any part sticks out, the gate agent can require it to be checked.

Ryanair’s official UK help page, last updated 6 February 2026, states that “all fares include one small personal bag measuring 40 × 30 × 20 cm which must fit under the seat in front of you.” The same dimensions appear on the Ryanair Bag Rules category page.

Does Ryanair cabin bag size include wheels?

Ryanair does not publish a specific statement on whether wheels are counted. The official bag policy says the bag must “fit completely under the seat in front of you” – that implies the whole bag, including any protruding wheels, must be within the 40 × 30 × 20 cm envelope. According to Which? (UK consumer advocacy group), a rigid‑wheeled bag is risky; soft‑sided bags that compress into the sizer are safer.

What is the 10 kg Ryanair cabin bag size?

Passengers who buy Priority & 2 Cabin Bags are allowed a second item: a 10 kg cabin bag with maximum dimensions of 55 × 40 × 20 cm (Ryanair Help Centre). That bag goes in the overhead locker. The free underseat bag is still included.

Has Ryanair changed its bag size for 2026?

As of early 2026, no official change has been announced. The UK help page was updated on 6 February 2026 and still shows 40 × 30 × 20 cm. The Ryanair terms and conditions page with that dimension was updated 26 September 2026. Rumours of a bigger or smaller bag size appear to stem from the inconsistent US‑help‑page dimension. Always verify on the official bag rules page before you fly.

The implication: trust UK sources, not US ones, for dimensions.

How strict is Ryanair with a small cabin bag?

Ryanair uses bag sizers at airport gates, and enforcement is generally consistent — if your bag doesn’t slide in easily, you may be asked to check it at the gate, which can cost up to €69 (Ryanair Help Centre).

The 40‑minute rule requires you to be at the boarding gate before it closes — usually 40 minutes before departure. If your bag is flagged at the sizer, there’s no time to repack, so test your bag at home. According to Tripp Ireland (travel luggage retailer), staff discretion varies: some airports are stricter than others. If your bag looks smaller than the sizer, you’re usually fine, but a visibly overstuffed backpack will be pulled.

What is the 40 minute rule for Ryanair?

It’s the deadline to present your boarding pass at the gate. If you arrive after the gate closes, you could be denied boarding (Ryanair Help Centre).

Can I remove items at the gate if my bag is too big?

In theory yes, but with the gate closing soon and the sizer being the only measure, you’d have to discard items or transfer them to your pockets. It’s far better to test before you leave home.

Where are Ryanair bag sizers checked?

Typically at the boarding gate, just before you step onto the jet bridge. Some airports also have sizers at check‑in. Staff may spot‑check even if your bag looks compliant (Which? (UK consumer group)).

The pattern: preparation is the only defence against gate fees.

Is a backpack considered hand luggage?

Yes — a backpack can be your free underseat bag, provided it fits 40 × 30 × 20 cm. Ryanair’s policy doesn’t mention “backpack” specifically, but the terms say “small personal bag” (Ryanair Help Centre). According to CabinZero (bag‑manufacturer blog), handbags, laptop bags, and small rucksacks are all suitable as long as they squeeze into the sizer.

If your backpack is larger than 40 × 30 × 20 cm, it becomes a cabin bag and requires Priority & 2 Cabin Bags. Many travellers buy a dedicated “Ryanair‑sized” backpack that fits the free allowance. Decathlon, for example, sells a 30 × 20 × 40 cm bag that matches the rule (Tripp Ireland).

What counts as a small personal bag on Ryanair?

Handbags, laptop bags, small backpacks, duty‑free shopping bags — any single item that fits the size limit. One bag per passenger, no exceptions.

Can a backpack be my free underseat bag?

Absolutely, if it’s within 40 × 30 × 20 cm. Many backpacks designed for budget airlines are advertised as “Ryanair‑friendly” (CabinZero blog).

How do Wizz Air and Ryanair baggage sizes compare?

Wizz Air’s free underseat bag is also 40 × 30 × 20 cm, while its paid cabin bag is 55 × 40 × 23 cm. For the most up‑to‑date comparison, consult each airline’s official bag policy.

What this means: a well-chosen backpack can be your only bag—no extra cost.

Is it cheaper to add a cabin bag after booking Ryanair?

No — adding a cabin bag during the original booking is almost always cheaper than adding it later. Ryanair uses dynamic pricing: the same 10 kg cabin bag might cost €10 when you book and €25 afterwards (Ryanair Help Centre). Routes, season, and seat availability all factor in.

How much does it cost to add a 10 kg bag on Ryanair?

There is no single fixed price. The quote depends on the route, the fare type, and when you add it. According to Skyscanner Ireland (travel search engine), expect €10–€40 for a 10 kg checked bag; the Priority add‑on costs around €6–€12 online. Adding at the airport is most expensive.

How much does a 20 kg Ryanair bag cost in Ireland?

Again variable — generally €16–€40 if added online in advance, based on route and season. You must check the current booking flow on Ryanair’s Ireland site for an exact figure.

What is the cheapest time to add a bag to a Ryanair booking?

During the initial booking, before you complete payment. Adding at the airport can cost up to three times the online price.

The catch: dynamic pricing means you pay more for procrastination.

What are the new airline baggage rules for 2026?

For Ryanair, no new baggage rules for 2026 have been officially announced. The UK help page last updated 6 February 2026 still lists 40 × 30 × 20 cm. The only change is that Ryanair’s terms‑and‑conditions pages were updated in September 2026, but they still carry the same dimensions – albeit with one page showing 40 × 20 × 25 cm. That inconsistency is the source of much online chatter.

Other European airlines have made changes for 2026 (e.g., Wizz Air adjusted some cabin‑bag dimensions), but Ryanair’s core policy remains stable. The best advice: always check the official bag rules page before every trip.

Has Ryanair changed its cabin bag size for 2026?

No confirmed change. The 40 × 30 × 20 cm rule is still the one that matters.

Is there a new Ryanair bag size?

No. The US help centre dimension (40 × 20 × 25 cm) is likely a regional wording error. The UK and most European pages use 40 × 30 × 20 cm (Ryanair Help Centre).

How do Ryanair and Wizz Air baggage policies compare in 2026?

Both allow a free underseat bag of 40 × 30 × 20 cm. Ryanair’s paid overhead bag is 55 × 40 × 20 cm up to 10 kg; Wizz Air’s is 55 × 40 × 23 cm up to 10 kg. Wizz Air’s WIZZ Priority is optional; Ryanair’s Priority includes the overhead bag and priority boarding. Check both carriers’ current rules for the exact comparison.

The pattern: ignore the rumour mill; the official source remains unchanged.

How to pack your luggage so it weighs less

Weight matters most for the 10 kg cabin bag, not the free underseat bag (Ryanair does not weigh the personal bag). But if you buy Priority, you’ll need to stay under 10 kg. Here are practical, tested ways to lighten your load.

• Wear your heaviest items. Boots, denim jacket, and a coat can shave 2–3 kg off your bag (Tripp Ireland).
• Choose lightweight shoes. A pair of trainers weighs around 500 g; leather boots can be 1.5 kg.
• Downsize toiletries. Travel‑size containers and solid shampoo bars save both weight and space.
• Limit electronics. A laptop charger plus power bank can add 1 kg. Only take what you’ll actually use.
• Use a travel scale. Weigh your packed bag at home – it eliminates surprises at the airport (Skyscanner Ireland).

What weighs the most in a suitcase?

Shoes, toiletry bottles, denim, and electronic chargers are the heaviest items. A pair of jeans can weigh up to 800 g, a laptop 2 kg, and a hair dryer another 600 g. Cutting those can free up 2–3 kg.

What if my luggage is 1 kg overweight?

Move heavy items into your underseat bag (which isn’t weighed) or wear them. At the airport, you may be charged a €10–€20 overweight fee (Ryanair Help Centre). Avoid by weighing at home.

What is the best way to pack a 10 kg Ryanair bag?

Roll clothes to save space; use packing cubes for organisation. Put heavy items (books, shoes) at the bottom near the wheels. Distribute weight evenly so the bag doesn’t tip over.

The consequence: smart shifting avoids overweight fees.

Two fare structures, one clear trade‑off: Basic is cheaper but you get only the underseat bag; Priority adds cost but gives you an overhead cabin bag.

The table below pulls together every official dimension Ryanair publishes for its different bag types, so you can see the full picture at a glance.

Step‑by‑step: Packing to hit the 10 kg limit

1. Weigh your empty bag and note the tare weight.
2. Place heaviest items (shoes, toiletries) in the underseat bag (not weighed).
3. Fill the 10 kg bag with rolled clothes in packing cubes.
4. Check the total weight on a travel scale.
5. If over 10 kg, remove the heaviest non‑essential item (e.g., an extra pair of shoes) and wear it.

What the experts say

“All fares include one small personal bag measuring 40 × 30 × 20 cm which must fit under the seat in front of you.”

— Ryanair Help Centre (UK – official bag policy)

“If you haven’t paid for Priority, you can only bring one small bag on board. That bag must be no bigger than 40 × 30 × 20 cm.”

— Which? (UK consumer advocacy group)

“A backpack, handbag or laptop bag can be your free personal item as long as it fits the sizer.”

— CabinZero (bag manufacturer’s travel guide)

“Be careful with the dimension order – some guides list 40 × 20 × 25 cm, but the official Ryanair page says 40 × 30 × 20.”

— Skyscanner Ireland (travel search platform)

The maths is straightforward: Ryanair’s free underseat bag is 40 × 30 × 20 cm – no wheels, no speculation. Passengers who need an overhead bag should buy Priority during the original booking to save money. For Irish travellers, the choice is clear: check the UK help page before departure, pack your soft‑sided bag at home with a travel scale, and ignore the 2026 rumour mill. Your sizer will thank you. For more on Ryanair routes, see our guide on Cork to Prague Flights: Direct, Cheap & Ryanair Info.

Frequently asked questions