Ryanair cabin bag: 2026 guide to permitted dimensions and best sizes

Why the Ryanair cabin bag is a real travel topic

Ryanair has established itself as one of the most popular low-cost airlines in Europe. Its business model relies on attractive fares, but also on a particularly strict baggage policy. It is precisely for this reason that the Ryanair cabin bag has become a strategic issue for travelers: choosing the wrong size can turn an economical flight into a source of extra expenses.

Understanding Ryanair's rules helps avoid three common problems: paying extra fees at the gate, wasting time at security, and traveling with poorly packed luggage. Conversely, a well-chosen bag allows you to travel faster, lighter, and with better control over your belongings.

Dimensions and size restrictions

The most important point concerns the size of the free baggage. To travel without extra charges, your personal bag must be compact and able to fit under the seat in front of you. In Ryanair's view, this isn't a large, standard carry-on bag, but rather an optimized personal item.

The small free cabin bag

The most common size accepted within the Ryanair ecosystem is 40 × 20 × 25 cm . This measurement includes the actual thickness of the bag when full. This is the point that most travelers find confusing: a soft bag may seem compliant when empty, then exceed the dimensions when full.

What Ryanair actually checks

• The total height of the bag.
• Its actual thickness, once loaded.
• The ability to fit into the template without forcing it.
• The possible presence of external pockets that increase the volume.

Why the choice of format is crucial

A bag designed specifically for this size greatly reduces the risks. Conversely, a small rigid suitcase or a bag that easily expands can become non-compliant at the most costly moment: just before boarding.

Permitted weight and common mistakes

Weight matters almost as much as size. As soon as you upgrade to a higher cabin fare, the maximum weight for larger carry-on baggage is often limited to 10 kg . While not all bags are systematically weighed, Ryanair enforces its rules much more strictly than many other airlines.

How to avoid exceeding the limit

• Weigh your bag before leaving using a luggage scale .
• Reduce liquids and use travel sizes.
• Wearing the bulkiest clothes on oneself.
• Limit heavy, non-essential items.

Which is expensive

The real trap isn't just the weight. It's the combination of weight, volume, and rigidity . An overstuffed bag becomes thicker, and therefore less compatible with the baggage size. That's when an unsuitable piece of luggage can be checked in and incur extra charges.

What types of cabin baggage are allowed?

Ryanair allows one small personal bag free of charge. This can include a compact backpack, a small satchel, or a structured soft bag. However, anything larger than the under-seat size usually requires a paid option.

The personal bag

This is the most cost-effective solution for minimalist travelers. It's perfect for a weekend getaway, a short city break, or a light business trip.

The additional cabin baggage

With the Priority option, Ryanair usually allows you to bring a second, larger cabin bag, up to 55 × 40 × 20 cm and weighing up to 10 kg . This completely changes your baggage allowance, but incurs an additional cost.

Prohibited items

As with other airlines, sharp objects, certain oversized liquids, or products that do not comply with security regulations may be confiscated. Therefore, Ryanair cabin bags should be considered not only as optimized luggage but also as compatible with security checks.

Priority option and second cabin baggage

The “Priority and 2 carry-on bags” option is useful if you want more space without checking luggage. It generally allows you to bring:

• a small personal bag under the seat;
• a larger cabin bag in the upper compartment;
• a smoother boarding process, with less risk of your large baggage going into the hold.

This option remains attractive for multi-day trips, but it's not always cost-effective for a short stay. If your goal is to avoid fees, the real work begins with choosing the right free option.

How to pack your bag efficiently with Ryanair

The most successful Ryanair travelers don't necessarily pack less. They pack better. The planning process is just as important as the bag itself.

Techniques that actually work

• Roll the clothes instead of folding them.
• Use suitcase organizers to compartmentalize.
• Add a travel compression bag to save space.
• Place heavy objects close to your back to stabilize the load.
• Reserve a pocket for quick access to documents and liquids.

The essentials to prioritize

• travel documents;
• liquids in the correct format;
• versatile clothing;
• chargers and accessories in a travel cable organizer .

Cabin baggage or checked baggage

For a short trip, free carry-on luggage is often the best option. It allows you to avoid waiting at check-in, not rely on checked baggage, and reduces the risk of loss. However, as soon as a trip involves bulky equipment, clothing for multiple climates, or purchases for the return journey, checked baggage becomes more advantageous.

Common mistakes to avoid

The most frequent errors with Ryanair are rarely spectacular. They are mostly repetitive.

• Choosing a bag that is too rigid.
• Forgetting to measure the actual thickness once filled.
• Do not weigh the luggage before departure.
• Use an old dimension ruler found online.
• Fill the bag to the brim without any safety margin.
• Ignoring the rules on liquids and slowing down inspections.

Comparison of the most suitable formats

Best practices before departure

• Check Ryanair's size requirements a few days before your flight.
• Measure the bag when it's full, not just empty.
• Weigh your luggage if you are travelling with a premium cabin option.
• Prepare liquids and documents for quick access.
• Reserve the Priority option in advance if you know the free format will be insufficient.

Frequently Asked Questions