How carry-on limits differ by region
Dimensions, weight and inclusion across 151 airline policies
Regional patterns are real, but they are not standards. Europe’s most frequent reference box in this dataset is 55 × 40 × 23 cm. The leading formats are 56 × 36 × 23 cm in the United States and 56 × 36 × 23 cm in Asia-Pacific. Weight separates the regions even more: the median known reference is 8 kg in Europe, 10 kg in Latin America and 7 kg in Asia-Pacific.
Those are planning signals, not entitlements. Your operating carrier and booked fare always outrank a regional average, particularly on codeshares and multi-airline itineraries.
A useful planning size, but not a universal maximum.
A light suitcase can preserve more usable packing weight.
Missing weight is data too: some policies use dimensions and safe-stowage language instead.
Regional comparison at a glance
For one-policy-per-airline comparisons, we select the stored cabin-bag allowance with the largest rectangular volume. That keeps one airline from counting multiple times, but it may describe a paid or higher-fare option rather than the cheapest ticket.
| Dataset region | Airlines | Most frequent box | Median weight | Weight coverage | Included option |
|---|---|---|---|---|---|
| Europe | 43 | 55 × 40 × 23 cm(19/43) | 8 kg | 43/43 | 35/43 |
| United Kingdom | 6 | 56 × 45 × 25 cm(2/6) | 10 kg | 6/6 | 6/6 |
| United States | 13 | 56 × 36 × 23 cm(5/13) | 13.5 kg | 2/13 | 7/13 |
| Canada | 5 | 55 × 40 × 23 cm(4/5) | 10 kg | 2/5 | 4/5 |
| Latin America | 14 | 55 × 35 × 25 cm(8/14) | 10 kg | 14/14 | 11/14 |
| Middle East | 17 | 56 × 45 × 25 cm(3/17) | 7 kg | 17/17 | 16/17 |
| Asia-Pacific | 36 | 56 × 36 × 23 cm(16/36) | 7 kg | 36/36 | 36/36 |
| Oceania | 7 | 56 × 36 × 23 cm(3/7) | 7 kg | 7/7 | 7/7 |
| Africa | 10 | 55 × 40 × 23 cm(3/10) | 8 kg | 10/10 | 10/10 |
Median weight excludes policies without a numeric kilogram limit. “Included option” means at least one stored fare/package includes a cabin bag; it does not mean every fare does.
Width is the biggest cross-region trap
We tested two 55 cm-high, 20 cm-deep boxes. The only change is the middle edge: 35 cm versus 40 cm. The narrower bag gives up 5.5 litres of rectangular-box volume but keeps substantially more compatibility in North America, Latin America and Asia-Pacific.
Dimensions are compared orientation-independently, longest edge to longest edge. Exact limit matches count here, although a real bag packed to the limit has no safety margin.
What the regional patterns mean in practice
Europe: familiar 40 cm width, fragmented fares
The most frequent representative box is 55 × 40 × 23 cm (19of 43 records), and the median known weight is 8 kg. Yet 8 European records in this dataset have only a paid or upgraded overhead-bag entry. Shape and fare inclusion are separate questions.
United States: narrower boxes, few numeric weight caps
56 × 36 × 23 cm is the most frequent representative box. A 55 × 35 × 20 cm bag matches 13 of 13 US records, versus only 5 for 55 × 40 × 20 cm. Only 2 representative records publish a number in kilograms, so a regional weight median has weak coverage here.
Latin America: 35 cm width and a 10 kg middle
The leading reference format is 55 × 35 × 25 cm, used by 8 of 14 records. The median known weight is 10 kg, but 3records still make the overhead bag paid or upgrade-dependent.
Asia-Pacific, Middle East and Oceania: watch the scale
The median known representative limit is 7 kg in Asia-Pacific,7 kg in the Middle East and 7 kg in Oceania. Numeric weight is published in 36/36,17/17 and 7/7 representative records respectively, so a light empty bag matters. Some policies also combine the weight of the cabin bag and personal item.
A practical strategy for a multi-region trip
Choose dimensions for the strictest segment
A 55 × 35 × 20 cm case is a strong planning compromise in this dataset, matching 142/151 records. It still fails some policies, so run the exact operating carriers through the trip checker before buying a bag.
Plan weight around 7 kg when routes are unknown
Seven kilograms is not universal, but it is a recurring strict cap and the regional median in three major samples. Weigh the bag packed; nominal capacity says nothing about mass.
Leave a physical margin
Wheels, handles and bulging pockets count. A soft bag can become wider after packing, so an exact 0 cm modelled margin is less reassuring than one or two spare centimetres.
Check the operating carrier
A codeshare marketed by a familiar airline may be operated under another carrier’s baggage procedure. Read the flight details and apply the strictest confirmed rule.
IATA also treats cabin baggage as airline-specific: its passenger baggage guidance presents general reference dimensions while directing travellers to the airline’s own conditions. You can follow the dated official-policy link on every FitsOnBoard airline profile.
Replace the regional average with your itinerary
Enter the packed outside dimensions—including wheels and handles—and compare them with the airlines you will actually fly. Then confirm fare inclusion and weight on the official policy.
Check your bag
Enter your bag’s three dimensions to see which airlines it fits.
Methodology and source window
We analysed all 151 verified airline records in the FitsOnBoard dataset. Airlines are grouped by the dataset’s carrier region, not by route. Each airline counts once and results are not weighted by passenger volume, fleet size, departures or market share.
For the summary table, we select the stored cabin-bag allowance with the largest rectangular volume for each airline. The “most frequent box” is the modal exact h × w × d value among those representative allowances. Median weight excludes records without a numeric limit; the coverage column exposes the denominator. Volume is a simple box calculation and is not usable capacity.
The 55 × 35 × 20 and 55 × 40 × 20 tests compare each shape against every stored cabin-bag allowance, with edges sorted longest-to-shortest. Weight, fare and route are excluded from those two dimensional match rates. Exact matches count as accepted but have no safety margin.
Official airline pages are the primary sources. The underlying policy checks are dated from 9 Jul 2026 to 24 Sept 2026. See the full methodology and editorial standards.
Regional carry-on limits FAQ
Do different regions have standard carry-on sizes?+
No region has one binding airline standard. Patterns exist—for example, 55 × 40 × 23 cm is the most frequent representative format in the European sample—but airlines remain free to set different limits by fare, route and aircraft.
What cabin-bag size works best across regions?+
A 55 × 35 × 20 cm bag matched at least one cabin allowance for 142 of 151 airline records in this analysis. A 55 × 40 × 20 cm bag matched 86. Neither size is universal, and weight is a separate test.
Why do US airlines often show no weight limit?+
Only 2 of 13 representative US records in this dataset publish a numeric weight cap. Where no number is published, the passenger generally still needs to lift and stow the bag safely and comply with dimensions. Always read the operating carrier’s policy.
Is 7 kg enough for Asia-Pacific and Middle East airlines?+
Seven kilograms is the median known representative limit in both the Asia-Pacific and Middle East samples, but a median is not a guarantee. Individual limits can be lower or higher, and some airlines combine the weight of the cabin bag and personal item.
Can I use the airline’s home region to predict my allowance?+
Only as a rough planning signal. The exact rule comes from the operating carrier, fare, route and aircraft. Codeshares are especially important: the marketing airline’s region does not decide the physical baggage check.