Ryanair Cabin Bag Size Guide 2025 — Exact Dimensions, Allowances & Approved Cabin Bags
If you’re flying with Ryanair this year, understanding the exact cabin bag size rules is essential. Ryanair has some of the strictest hand luggage limits in Europe, and choosing the wrong bag can lead to expensive fees at the gate. This guide explains the full Ryanair cabin baggage allowance for 2025, including the underseat personal item size, the 10kg Priority cabin bag dimensions, carry-on weight rules, and what types of bags actually fit. You’ll also find links to suitable cabin suitcases and Ryanair-approved luggage so you can travel confidently without worrying about size checks.
| Bag Type | Size (cm) | Size (inches) | Weight | Included? |
|---|---|---|---|---|
| Free Underseat Bag (Personal Item) | 40 × 20 × 25 cm | 15.7 × 7.8 × 9.8 in | No official limit | Yes |
| Priority 10kg Cabin Bag | 55 × 40 × 20 cm | 21.6 × 15.7 × 7.8 in | Up to 10kg | With Priority |
| 20kg Checked Baggage | Up to 80 × 120 × 120 cm | Varies | 20kg | Paid |
| Large 28-inch Suitcase (23kg+) | Approx 75–80 cm height | 29.5–31.5 in | 20–23kg | Paid |
Ryanair Cabin Bag Size (Free Underseat Bag)
Every Ryanair ticket includes one free cabin bag, often referred to as the underseat bag or personal item. The official Ryanair cabin bag size for the free allowance is 40 × 20 × 25 cm. This bag must fit entirely under the seat in front of you, and Ryanair does enforce this rule regularly at the boarding gate, especially during busy flights.
The underseat bag size is suitable for small backpacks, compact underseat trolleys, slim laptop bags and lightweight totes. It’s important to note that although Ryanair does not state an official weight limit for this free bag, it must be light enough to slide easily under the seat without stretching beyond the allowed depth or height. Travellers often underestimate how strict Ryanair can be with the 20cm depth requirement, so bags that are soft-shelled and slightly flexible tend to work best.
If you need something larger than the free 40×20×25 cm allowance, Ryanair requires you to purchase Priority so that you can bring a proper cabin bag or carry on suitcase. If you’d prefer to browse standard cabin luggage options that meet the more common 55×40×20 dimension, you can view our full range of hand luggage here:
Ryanair Priority & 10kg Cabin Bag Size
For travellers who need more than just a small underseat bag, Ryanair’s Priority option allows you to bring two bags on board: the 40×20×25 cm personal item plus a 10kg cabin bag that must not exceed 55 × 40 × 20 cm. This is the familiar carry-on suitcase size and is often referred to as a cabin suitcase, 10kg trolley, or Ryanair Priority bag.
The 55×40×20 cm carry-on size is also equivalent to approximately 21.6 × 15.7 × 7.8 inches, which is useful for anyone searching for Ryanair carry on size in inches. A bag that fits these measurements can be stored in the overhead locker and gives you significantly more packing space than the free underseat bag. These bags are ideal for short breaks, overnight business trips, and weekend travel where you want to avoid checked baggage fees.
You can shop all Ryanair-approved 10kg suitcases here:
Ryanair Baggage Allowance Explained Clearly
Ryanair baggage rules can sometimes feel confusing, but the system is straightforward once broken down. All passengers get the free 40×20×25 cm personal item, and only Priority passengers can bring the larger 10kg cabin bag. Anything beyond that must be checked in. The standard checked baggage option for most people is the 20kg suitcase, which is ideal for longer trips or travellers who need more space than a cabin bag provides. You can browse suitable options here:
Ryanair 20kg size guide also allows larger bags for customers who prefer a 23kg+ suitcase. These typically align with 23kg luggage dimensions and are best for holidays of a week or more. You can see our 28-inch suitcases here:
For couples or families travelling together, suitcase sets offer better value and ensure that everyone has a mix of cabin and checked luggage that meets airline requirements. You can explore our suitcase sets here:
Understanding Your Options: Underseat Bag vs Carry On Suitcase
Choosing between the free Ryanair underseat bag and the larger 10kg cabin suitcase depends on the length and purpose of your trip. The 40×20×25 cm underseat allowance is ideal for short one-day visits, commuters, or minimalists who pack very light. However, most travellers find that the 55×40×20 cm Priority cabin suitcase provides far more flexibility. It allows you to bring proper outfits, a pair of shoes, toiletries, and other essentials without struggling to squeeze everything into a tiny personal item.
If you prefer to browse every type of cabin bag that fits airline rules, including hard-shell and soft-shell cases in both 10kg and underseat sizes, see our dedicated cabin collection here:
https://www.suitcasesireland.ie/collections/collections-cabin-suitcases-hand-luggage
How Strict Is Ryanair With Bag Size?
Ryanair is widely known for enforcing their baggage size rules. During peak travel seasons, they frequently check the size of both underseat bags and Priority cabin suitcases at the gate. Bags that bulge slightly above the 20cm depth can be rejected, and overstuffed underseat bags may be forced into the sizer. If a bag fails to fit, Ryanair typically charges a high fee to place it in the hold — often far more than the cost of upgrading to Priority in advance.
For this reason, travellers often choose a lightweight carry on suitcase that exactly matches the 55×40×20 cm limit. This ensures you can breeze through boarding without worrying about additional airline fees.
Comparing Ryanair Cabin Luggage With Other Airlines
One reason people search for Ryanair cabin bag size is because it differs significantly from carriers like Aer Lingus, easyJet, and British Airways. For example, easyJet’s standard cabin bag size is more generous than Ryanair’s, and Aer Lingus typically allows a slightly deeper cabin suitcase. If you travel with multiple airlines throughout the year, choosing a 55×40×20 cm cabin suitcase provides the best all-round compatibility. It fits Ryanair Priority, but it also fits nearly all other European airlines.
You can view all compatible hand luggage options across different airlines here:
Frequently Asked Questions About Ryanair Cabin Bags
What size is Ryanair’s free cabin bag?
The free bag included with every Ryanair ticket is 40×20×25 cm and must fit under the seat.
What size is the Ryanair Priority cabin suitcase?
Priority passengers may bring a 55×40×20 cm cabin suitcase weighing up to 10kg.
Does Ryanair check bag size?
Yes, Ryanair is strict. Bags are often checked at boarding, especially the depth and height.
Can I bring two cabin bags?
Only if you purchase Priority & 2 Cabin Bags.
What is Ryanair carry on size in inches?
The Priority cabin suitcase size (55×40×20 cm) is approximately 21.6 × 15.7 × 7.8 inches.
Is 40×20×25 big enough for a weekend?
It can work for very light packers, but most travellers prefer a 55×40×20 cm carry-on suitcase.