Brussels Airlines Cabin Baggage Size: 2026 Regulations

Are you planning to travel with Brussels Airlines in 2026 and want to know the rules regarding carry-on baggage? Be aware that the airline includes a baggage allowance for carry-on items, with specific dimensions and weight.

In general, Brussels Airlines allows one carry-on suitcase with a maximum size of 55 x 40 x 23 cm, to be stored in the overhead compartment, as well as a smaller bag or handbag to be tucked under the seat in front of you. This information is clearly detailed on their official website, in the "carry-on baggage" section, to allow you to organize your belongings without unpleasant surprises at check-in or boarding.

Whether you are flying on a direct flight or with multiple airlines, knowing the Brussels Airlines regulations will help you avoid extra fees and checks at the hold. Consult the resources available online to compare the policies of different airlines and prepare your luggage with complete peace of mind.

Summary of Brussels Airlines carry-on baggage

Brussels Airlines allows one carry-on bag measuring 55 x 40 x 23 cm and one personal item measuring 40 x 30 x 10 cm. The weight varies depending on the class: 8 kg in Economy, up to 16 kg (2 x 8 kg) in Business.

What are the authorized dimensions for Brussels Airlines carry-on baggage in 2026?

Brussels Airlines imposes strict dimensions for carry-on baggage. Each passenger may bring one carry-on suitcase not exceeding 55 x 40 x 23 cm (including handles and wheels). This size corresponds to the standard format accepted by most European airlines.

Main baggage

The main baggage must fit in the aircraft's overhead compartment. Brussels Airlines regularly checks dimensions at the time of boarding using sizing gauges. If your suitcase exceeds the limits, it will be placed in the hold, sometimes for an additional fee.

Personal item

In addition to the carry-on bag, you may take one personal item with maximum dimensions of 40 x 30 x 10 cm. This can be a handbag, a laptop bag, or a small backpack. This item must be placed under the seat in front of you.

Comparison with other airlines

Brussels Airlines dimensions (55 x 40 x 23 cm) are similar to those of Lufthansa and Swiss, which belong to the same group. To compare with other rules, consult our ultimate guide to airplane luggage dimensions.

The different categories of accepted carry-on baggage

Hard-shell carry-on suitcase

The hard-shell carry-on suitcase is the most popular choice for air travel. Made of polycarbonate or ABS, it effectively protects your belongings. Ensure its outer dimensions remain within the 55 x 40 x 23 cm limit, including wheels and telescopic handle.

Soft bag and carry-on backpack

Soft bags and carry-on backpacks are also accepted by Brussels Airlines, provided they respect the maximum dimensions. The advantage of a soft bag is that it can be compressed slightly to fit into the sizing gauge.

Garment bag and special cases

Brussels Airlines accepts garment bags in the cabin, provided they respect standard dimensions. Small musical instrument cases may also be brought, subject to compliance with the limits.

Carry-on baggage: differences by Brussels Airlines travel class

Economy Light, Classic, and Flex

In Economy class (regardless of the sub-category), you are entitled to 1 carry-on bag of 55 x 40 x 23 cm and one personal item. The total weight must not exceed 8 kg. There is no difference in carry-on allowance between Light, Classic, and Flex; the difference concerns checked baggage.

Business Class

Business Class passengers benefit from a more generous allowance: 2 carry-on bags of 55 x 40 x 23 cm, for a total weight of 16 kg (2 x 8 kg), plus a personal item. A significant advantage for business travelers.

Passengers with children and PRMs

Passengers traveling with a baby under 2 years old may take an additional bag for the baby's belongings. Persons with reduced mobility (PRM) may also take their mobility equipment in addition to their standard allowance. To prepare your baggage properly, discover our 5 tips for traveling with a carry-on suitcase.

Good to know about checks and boarding

Dimension check at the boarding gate

Brussels Airlines regularly conducts checks at the boarding gate. Agents use metal sizers to verify that your baggage respects the 55 x 40 x 23 cm limit. If your suitcase does not fit, it will be placed in the hold.

Weighing carry-on baggage

Weighing is not systematic, but Brussels Airlines reserves the right to check the weight of your carry-on bag. Exceeding 8 kg (Economy) or 16 kg (Business) may result in it being transferred to the hold or incurring additional fees.

Priority boarding

Business passengers, Miles & More members with high status, and Star Alliance Gold cardholders board with priority, which guarantees them space in the overhead compartments. In Economy, the last to board risk having their baggage sent to the hold if the compartments are full.

Special baggage and prohibited items in the cabin

Liquids and the 100 ml rule

As on all flights departing from the EU, liquids in the cabin must be contained in containers of 100 ml maximum, placed in a one-liter transparent resealable plastic bag. This rule applies to gels, creams, aerosols, and pastes.

Electronic devices

Laptops, tablets, and cameras are allowed in the cabin. Spare lithium batteries must be carried in the cabin (prohibited in the hold). Power banks are accepted up to 100 Wh.

Prohibited items

Sharp objects (knives, scissors longer than 6 cm), tools, blunt sports items, and any object that can be used as a weapon are strictly prohibited in the cabin. Pack them in your checked baggage.

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Conclusion

Traveling with Brussels Airlines while respecting carry-on baggage rules is simple: 55 x 40 x 23 cm and 8 kg maximum in Economy, up to 2 bags of 8 kg in Business. A personal item of 40 x 30 x 10 cm is included in all classes.

For a stress-free boarding, check the dimensions and weight of your suitcase before you leave. Find all updated information on the official Brussels Airlines baggage page. A Brussels Airlines 55x40x23 carry-on suitcase with the correct dimensions will ensure a serene trip.

Frequently asked questions about Brussels Airlines carry-on baggage

What is the maximum weight of Brussels Airlines carry-on baggage?

The maximum weight is 8 kg in Economy (Light, Classic, and Flex) and 16 kg (2 x 8 kg) in Business Class.

Can I take a handbag in addition to my carry-on suitcase?

Yes. Brussels Airlines allows one personal item of 40 x 30 x 10 cm in addition to the main carry-on bag, regardless of your travel class.

What happens if my carry-on bag is too big?

If your baggage exceeds 55 x 40 x 23 cm, it will be placed in the hold at the boarding gate. Additional fees may apply, especially if your fare does not include checked baggage.

Do the dimensions include the wheels and handle?

Yes. The 55 x 40 x 23 cm dimensions include wheels, handles, and external pockets. Measure your suitcase in its entirety.

Does Brussels Airlines provide a carry-on bag?

No. Brussels Airlines does not provide a carry-on bag. You must bring your own, respecting the authorized dimensions and weight.