Bag Fitswhat actually flies free

Cabin bag sizes, airline by airline

What actually flies free in the cabin on 29 airlines, from each airline's own baggage page — not from a 2023 listicle. Ranked by how much free bag you get.

"Biggest free bag" is the largest bag every passenger can bring at no extra cost — on budget carriers that is usually the under-seat personal item, with the full-size cabin bag sold separately or tied to fare tiers. Litres are computed from the published dimensions.

AirlineBiggest free bag VolumeFull-size cabin bag
British Airways56 × 45 × 25 cm63 Lfree
Jet256 × 45 × 25 cm63 Lfree
Iberia56 × 40 × 25 cm56 Lfree
TAP Air Portugal55 × 40 × 25 cm55 Lfree
Air Canada55 × 40 × 23 cm51 Lfree
Turkish Airlines55 × 40 × 23 cm51 Lfree
Air France55 × 35 × 25 cm48 Lfree
KLM55 × 35 × 25 cm48 Lfree
American Airlines56 × 36 × 23 cm46 Lfree
Etihad56 × 36 × 23 cm46 Lfree
Qantas56 × 36 × 23 cm46 Lfree
Virgin Atlantic56 × 36 × 23 cm46 Lfree
Qatar Airways50 × 37 × 25 cm46 Lfree
Emirates55 × 38 × 22 cm46 Lfree
Delta56 × 35 × 23 cm45 Lfree
United56 × 35 × 23 cm45 Lfree
TUI Airways55 × 40 × 20 cm44 Lfree
easyJet45 × 36 × 20 cm32 Lpaid extra
Norwegian40 × 30 × 20 cm24 Lpriority or higher fares only
Ryanair40 × 30 × 20 cm24 Lpriority or higher fares only
Vueling40 × 30 × 20 cm24 Lpriority or higher fares only
Wizz Air40 × 30 × 20 cm24 Lpriority or higher fares only
WestJet41 × 33 × 15 cm20 Lall fares except UltraBasic
airBaltic40 × 30 × 15 cm18 Lall fares except Economy MINI
Austrian Airlines40 × 30 × 15 cm18 Lall fares except Economy Basic (short/medium-haul)
Finnair40 × 30 × 15 cm18 Lall fares except Economy Superlight
Lufthansa40 × 30 × 15 cm18 Lall fares except Economy Basic (short/medium-haul)
SAS40 × 30 × 15 cm18 Lall fares except SAS Go Light
SWISS40 × 30 × 15 cm18 Lall fares except Economy Basic (short/medium-haul)
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Airlines not in the table

Aer Lingus — Excluded from the size comparison: with no published personal-item dimensions and the cabin bag paid, there is no free allowance to measure. A February 2026 change extended the 10kg carry-on policy across Aer Lingus Regional flights.

Singapore Airlines — Excluded from the size comparison because the limit is published as a 115cm total, not as three dimensions. Economy allows one 7kg piece; Business and First allow two.

These aren't omissions. Each publishes its cabin rules in a form that can't be compared as three dimensions, and inventing a number to fill the row would defeat the point of the table.

Airlines we could not read

Their allowances are on their own sites and are perfectly real; they are simply not in this table, and saying which ones and why is more useful than a table that quietly stops at 29 airlines.

One bag for all of them

A bag no bigger than 40 × 30 × 15 cm fits the free allowance on every airline above — the arithmetic is here.

Where these numbers come from

Each airline's own baggage page, fetched 19 August 2026, source-linked on every page. Several carriers changed allowances in 2025–26, so anything unsourced or undated you read elsewhere may predate the change. If a figure here is wrong, it is a mistake rather than a marketing choice, and it gets corrected with the date it changed.

Every airline

Allowances checked 19 August 2026 against each airline's own baggage page. Rules change with little notice — the airline's page is the authority on the day you fly.