Airline Carry-On Size Checker

Why carry-on size limits matter

Carry-on size rules vary more than most travelers expect. A bag that fits comfortably on one airline may cost you a gate-check fee on another. Budget carriers are especially unforgiving: Ryanair, Spirit, and Wizz Air measure bags routinely, and the fees for non-compliance can exceed the cost of the ticket itself.

Even among full-service airlines, the differences add up. Some Asian and European carriers enforce strict weight limits of 7-8 kg, while most US airlines have no weight cap at all. If you fly multiple airlines on a single trip, your carry-on needs to satisfy the strictest airline on your itinerary.

How to use this tool

Single airline mode: Search for your airline to see its carry-on and personal item dimensions, weight limits, enforcement level, and any important notes. Use the "Check your bag" feature to enter your bag's measurements and get an instant pass/fail result.

Compare mode: Switch to compare mode to add up to three airlines and see their limits side by side in both card and table format. This is useful for multi-airline trips or choosing which bag to bring.

Unit toggle: Switch between centimeters/kilograms and inches/pounds with one click. Dimensions include handles and wheels, which is how airlines measure.

Tips for staying within carry-on limits

Measure your bag with everything packed. Soft-sided bags expand. Measure when loaded, not empty.
Target the smallest airline on your itinerary. If you are flying Delta then Ryanair, pack to Ryanair's limits.
Weigh your bag at home. A luggage scale costs less than one overweight bag fee. This is non-negotiable for European budget carriers.
Wear your heaviest items. Your jacket, boots, and heaviest layers should go on your body, not in the bag. See our guide to dressing for long flights for more on this strategy.
Pack compressible clothing. Merino and technical travel fabrics compress dramatically in packing cubes, helping you stay within volume limits even on strict airlines.

Understanding enforcement levels

We rate each airline's enforcement as strict, moderate, or relaxed based on reported traveler experiences and airline policies.

Strict: The airline regularly measures and/or weighs bags at check-in or the gate. Oversized bags will be charged or denied. Typical of budget carriers.
Moderate: The airline has clear size rules and may enforce them, especially on full flights or at certain airports. Slightly oversized bags usually pass, but it is not guaranteed.
Relaxed: The airline rarely checks bag dimensions. As long as your bag fits in the overhead bin, you are unlikely to have an issue. Most US full-service carriers fall here.

FAQ

What is the standard carry-on size for most airlines?

Most full-service airlines allow carry-on bags up to 56 × 36 × 23 cm (22 × 14 × 9 inches), including handles and wheels. This is the IATA recommended size, though individual airlines may vary by a centimeter or two. Budget carriers typically allow smaller dimensions.

Do airlines actually weigh carry-on bags?

It depends on the airline and region. Most US carriers do not enforce carry-on weight limits. European budget airlines like Ryanair and Wizz Air enforce weight limits strictly and will weigh bags at the gate. Asian carriers generally enforce weight limits at check-in. Full-service airlines in Europe and the Middle East have limits on paper but enforce them inconsistently.

What happens if my carry-on is too big?

If your bag exceeds the airline's carry-on dimensions, you may be required to check it at the gate. On budget carriers with strict enforcement, this usually incurs a fee — often higher than pre-purchasing checked baggage. On full-service carriers with moderate enforcement, gate agents may check your bag for free if overhead bins are full.

Does the carry-on size include wheels and handles?

Yes. Nearly all airlines measure carry-on dimensions including wheels, handles, and exterior pockets. When checking your bag against size limits, always measure from the outermost points of the bag, not the interior or the bag body alone.

What is the difference between a carry-on and a personal item?

A carry-on bag goes in the overhead bin and is typically the larger of the two allowed items, usually around 56 × 36 × 23 cm. A personal item fits under the seat in front of you and is smaller, typically around 45 × 35 × 20 cm. Most airlines allow one of each, though some budget carriers only include a personal item in the base fare.

Which airlines are strictest about carry-on size?

Budget carriers are the strictest: Ryanair, Wizz Air, Spirit Airlines, and Frontier Airlines all measure and weigh bags regularly. Asian budget carriers like AirAsia, Cebu Pacific, and Peach Aviation also enforce limits strictly. Full-service US carriers tend to be the most relaxed about size enforcement.

All airlines

Browse carry-on size guides for every airline in our database.

North America

Europe

Asia-Pacific

Middle East

Latin America

Oceania

Africa

South African Airways (SA)

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