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 carry-on baggage allowance, with specific dimensions and weight limits.

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

Whether you are traveling on a direct flight or with several airlines, knowing Brussels Airlines' regulations will help you avoid additional fees and hold checks. Consult online resources to compare the policies of different airlines and prepare your luggage with peace of mind.

Brussels Airlines Carry-on Baggage Summary

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 by 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 can carry a carry-on suitcase not exceeding 55 x 40 x 23 cm (handles and wheels included). This size corresponds to the standard format accepted by most European airlines.

Main baggage

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

Personal item

In addition to your carry-on baggage, you can bring a 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 baggage 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. Make sure its external 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, as long as they comply with the maximum dimensions. The advantage of a soft bag: it can be slightly compressed to fit into the control gauge.

Garment bags and special cases

Brussels Airlines accepts garment bags in the cabin, provided they comply with standard dimensions. Cases for small musical instruments can also be carried, 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 allowed 1 carry-on bag measuring 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 relates to checked baggage.

Business Class

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

Passengers with children and PRM

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

Good to know about security checks and boarding

Dimension control at the boarding gate

Brussels Airlines regularly performs checks at the boarding gate. Agents use metallic gauges to verify that your baggage complies with the 55 x 40 x 23 cm dimensions. If your suitcase does not pass, it will be placed in the hold.

Carry-on baggage weighing

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

Priority boarding

Business passengers, high-status Miles & More members, and Star Alliance Gold cardholders board with priority, which guarantees them space in the overhead compartments. In Economy, those who board last 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 in containers of 100 ml maximum, placed in a transparent, resealable plastic bag of one liter. 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 (forbidden in checked luggage). Power banks are accepted up to 100 Wh.

Prohibited items

Sharp objects (knives, scissors over 6 cm), tools, blunt sports equipment, and any object that can be used as a weapon are strictly forbidden in the cabin. Place them in your checked luggage.

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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 measuring 40 x 30 x 10 cm is included in all classes.

For a stress-free boarding experience, check the dimensions and weight of your suitcase before you leave. Find all up-to-date information on the official Brussels Airlines baggage page. A hard-shell carry-on suitcase of the correct dimensions will guarantee you a peaceful journey.

Frequently Asked Questions about Brussels Airlines carry-on baggage

What is the maximum weight for 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 bring a handbag in addition to my carry-on suitcase?

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

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

If your bag 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 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 carry-on bags. You must bring your own, respecting the authorized dimensions and weight.