British Airways Personal Item Size (2026)

British Airways calls the under-seat piece a hand bag: max 40 × 30 × 15 cm (16 × 12 × 6 in), must easily fit under the seat, and is guaranteed in the cabin. It may hold essentials such as medication, phones, other electronics and passports. It is free on every cabin listed on baggage essentials, including Economy Basic, and is in addition to the 56 × 45 × 25 cm cabin bag. No kg limit for the hand bag is printed on that accordion (opened 2026-09-17). Pack power banks and spare batteries in this smaller under-seat item so they are not in a cabin bag that might go to the hold.

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Wheels/handles: not specified for hand bag. Sizer fit / under-seat fit when packed.

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There is no paid upgrade that enlarges the hand bag. Extra money buys hold bags, not a bigger under-seat item.
If the cabin bag is hold-gated, this hand bag is the one that stays with you. Pack like it.

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1. This is not the 56×45×25 trolley. Under-seat only.
2. Basic still includes the trolley too. This leaf must not imply Basic = hand bag alone.
3. Guaranteed vs not: hand bag guaranteed; cabin bag may go to hold.
4. Power banks / spare lithium → under-seat hand bag, never hold.
5. No published hand-bag kg.
6. 45×36×20 calculator ghost — VERIFY; don’t lead with it.
7. Soft bags expand. Measure packed.
8. Codeshare / partner personal-item rules may differ.
9. Do not paste US 18×14×8 onto BA.

Traveler caution: If the overhead fills up, this is the bag that still boards. Put the passport and the power bank here. Confirm 40 × 30 × 15 cm on britishairways.com before you fly.

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VERIFY (unpublished or conflicting on official pages opened 2026-09-17):

• VERIFY: Hand-bag weight unpublished on accordion.
• VERIFY: Calculator 45 × 36 × 20 vs accordion 40 × 30 × 15.
• VERIFY: Exit-row / bulkhead / First / Club under-seat exceptions (older BA materials mentioned locker placement for the small bag) — confirm on a live 2026 page before shipping as current.
• VERIFY: Infant “in-flight essentials” bag exact centimetres on family page.

What is the British Airways personal item / hand bag size?
Official baggage essentials: 1 hand bag, max 40 × 30 × 15 cm (16 × 12 × 6 in), must easily fit under the seat, guaranteed in the cabin. No kg limit is published on that accordion (2026-09-17).

Is the BA personal item free on Economy Basic?
Yes. Economy Basic includes the hand bag and the cabin bag. It excludes checked bags, not the under-seat item.

Can I take a backpack as my BA personal item?
BA’s accordion says hand bag and lists essentials examples; the calculator UI also says handbag or backpack at 40 × 30 × 15 cm in one block. A backpack is fine if packed it fits 40 × 30 × 15 cm under the seat. BA does not publish a separate backpack exception size on the accordion.

What’s the difference between BA personal item and cabin bag?
Hand bag = under seat, 40 × 30 × 15 cm, guaranteed onboard. Cabin bag = 56 × 45 × 25 cm including wheels/handles, overhead, may be put in the hold. Both are free hand baggage on BA operated flights covered by baggage essentials.

Where should I pack my power bank on British Airways?
Power banks and spare batteries are forbidden in checked baggage and must travel in hand baggage. The electronics FAQ: put spare batteries and power packs in the smaller under-seat item in case the larger cabin bag is hold-gated.

Does BA Plus / Basic enlarge the personal item?
BA does not use Ryanair-style Plus for cabin rights. Economy Basic keeps the same hand-bag size; it simply has no free hold bag.

• British Airways cabin bag
• British Airways baggage fees

Fees, fare bundles, and size rules change. Confirm the latest limits and live bag prices on official British Airways pages before you travel. BagRule is an independent publisher and is not affiliated with British Airways.