Under the seat
Personal Item
40×30×15 cm
15.7×11.8×5.9 in
One additional bag under the seat. No separate numeric weight is published. Airport purchases, including duty-free, count towards the allowance.
Included
Overhead cabin bag
cabin bag
55×40×23 cm
21.7×15.7×9.1 in
Weight limit: 8 kg (17.6 lb)
Default represents included Economy cabin baggage. Economy Basic on selected European routes has no main bag included. Each permitted main bag has its own 8 kg limit. Measure the packed external dimensions.
The source does not say whether wheels and handles are included, so measure the full external size to be safe.
Fares & cabin classes
Economy
1 cabin bag
55×40×23 cmUp to 8 kg
Economy Light, Comfort, Comfort Green and Flex: one main bag up to 8 kg plus one personal item.
Business
2 cabin bags
55×40×23 cmUp to 8 kg
Two main bags up to 8 kg EACH, plus a personal item. Some aircraft and regional restrictions can reduce the allowance to one main bag.
Basic Economy
No overhead cabin bag
Personal Item: 40×30×15 cm
Economy Basic on selected short/medium-haul European routes: personal item only. A main bag may be bought online or through the Service Centre until 2 hours before departure, not at the airport. HON Circle, Senator and Star Alliance Gold exceptions apply. Long-haul Basic includes a main bag; select the included Economy allowance for that itinerary.
Premium Economy
1 cabin bag
55×40×23 cmUp to 8 kg
Long-haul Premium Economy: one main bag up to 8 kg plus one personal item.
Baggage fees
No reliable fixed price is listed here. Check your booking for the cost of adding a bag; an unlisted price does not mean it is free.
Official baggage policyHow to use this policy
Check cabin bag dimensions, weight and personal-item limits separately. A bag has to pass every published limit at once; being under the length and width limit does not help if the depth, weight, or fare-specific allowance is tighter.
Editorial signal only. Measure the packed bag and verify the operating carrier's rule.
Brussels Airlines liquids policy
Ordinary liquids: containers up to 100 ml in one transparent resealable 1-litre bag, with screening exceptions for necessary medicines, dietary items and baby food. Sealed duty-free purchases require the applicable security bag and receipt. Check current departure and transfer airport instructions.
Family & Infants
Infant (under 2)
An infant without their own seat has no separate hand-baggage allowance; necessary baby food is allowed. Do not infer an extra cabin bag from a checked-baggage allowance.
Stroller
One carrying basket, child car seat OR collapsible stroller is carried free in the hold. Label a foldable stroller at check-in; use up to the aircraft door and return location depend on the airport. An ultra-compact stroller in the cabin counts within the cabin allowance.
Car seat
Cabin use requires a booked seat and an approved child restraint; contact the Service Centre and obtain check-in approval. The parent installs the seat; exit-row restrictions apply.
Children's allowance
The booked fare determines the child allowance. The family page also states one 8 kg child bag without resolving Basic; confirm a Basic child ticket rather than assume an additional free bag.
Frequently asked questions
What is the Brussels Airlines cabin bag size?
Does Brussels Airlines have a weight limit for carry-on?
Does Brussels Airlines allow a personal item?
How strict is Brussels Airlines about bag size?
Additional notes
Sources and scope
Source-based research; no hands-on test or specialist review claimed.
Basic short/medium PI40x30x15 only; other Eco1x8kg55x40x23 +PI; Premium1x8, Business2x8 EACH. HON/Senator/StarGold Basic1main exception. Dutyfree counts. Noncompliant hold EUR60-110/CHF60-110/USD75-125 credit-card only; compliant highload free hold. Liquids100ml1L with medical/diet/baby/STEB exceptions. Regional/India/US aircraft exceptions may reduce Business to1. Wheels not explicitly defined in read text.
Published carrier policy and explicitly scoped exceptions; AI review, no firsthand enforcement measurement.
Fare/class tables, special items, non-compliant bags, regional exceptions, liquidsSource review: · Codex (AI source review)
Selected European routes PIonly. One extra cabin bag can be bought online/service centre up to2h departure, not airport; other Economy cannot buysecond. Gatehandling hold EUR60-110. Longhaul Basic includes cabin+PI+checked. Business upgrade2x8 EACH.
Published carrier policy and explicitly scoped exceptions; AI review, no firsthand enforcement measurement.
Allowance, extra services, FAQSource review: · Codex (AI source review)
Infant noseat no cabinbag; foodallowed. Checked23kg exceptshortmediumBasic/Light. Childsamefare but pagealso sayschildrenone8kg: preservefare caveat rather than inferfreeBasic. One freechecked carryingbasket ORcarseat ORcollapsiblestroller.
Published carrier policy and explicitly scoped exceptions; AI review, no firsthand enforcement measurement.
Baggage and free equipmentSource review: · Codex (AI source review)
Foldablestrollerfree labelcheckin useuptodoor; returndoor exceptnamedairportsbelt. Ultra-compactcountswithincabinallowance. Carseatownseat approved device/checkinapproval/selfinstallation/noexitadjacent; contactservice.
Published carrier policy and explicitly scoped exceptions; AI review, no firsthand enforcement measurement.
Pushchairs; child seatsSource review: · Codex (AI source review)
Non-compliant or unentitled cabin baggage can be placed in the hold for EUR60–110, CHF60–110 or USD75–125 depending on route, payable by credit card. This is a hold-handling charge, not purchase of cabin access. A compliant bag may be checked free on a full flight; keep valuables, medication and electronics with you. Business and regional exceptions must be confirmed for the itinerary.
Keep exploring
Rules can change. Always verify with Brussels Airlines before flying.