How the check works
- Dimensions are compared side by side. A bag's three sides are matched against the airline's three published sides, longest to longest, so a bag is not failed just because it is rotated.
- A failure names the side and the amount. "Longest side over by 2 cm" is actionable; "does not fit" is not.
- Measured limits include wheels and handles. Airlines measure the bag as it is, so a case marketed as a 22-inch carry-on can still be over.
- Missing data is reported as missing. If a limit has not been verified, the page says so instead of guessing.
What this site does not claim
- A verdict here is guidance. The airline measures your bag at the airport and its decision governs.
- Fees change, and they vary by route, fare family and booking channel. Every figure shows the day it was verified and the page it came from.
- Not every airline and fare type is covered yet. Where a carrier is missing, it is missing on purpose rather than filled in with an approximation.
- This site is not affiliated with, endorsed by, or sponsored by any airline. Airline names are used only to identify whose rules are described.
Published limits by airline
The table below is generated from the same verified records the checker uses, so it cannot drift from the tool. Every row carries the day the rule was last checked against the airline's own page.
| Airline | Carry-on | Personal item | Checked bags | Source |
|---|---|---|---|---|
| American Airlines | 56 × 36 × 23 cm 22 × 14.2 × 9.1 in · weight: none published |
45 × 35 × 20 cm 17.7 × 13.8 × 7.9 in · weight: none published |
US / Canada / Mexico / Caribbean / Central America, Main Cabin first bag: USD 45 online · USD 50 at the airport US / Canada / Mexico / Caribbean / Central America, Basic Economy first bag: USD 50 online · USD 55 at the airport |
source 2026-10-07 |
| Southwest Airlines | 61 × 40.6 × 25.4 cm 24 × 16 × 10 in · weight: none published |
no numeric limit published The airline lists examples instead of a number: purse (including crossbody bags), briefcase, laptop case, backpack, pillow, blanket, small camera. No numeric size limit is published; it must go under the seat in front of you. |
no verified fee data yet | source 2026-10-07 |
| easyJet | 56 × 45 × 25 cm 22 × 17.7 × 9.8 in · weight: 15 kg |
45 × 36 × 20 cm 17.7 × 14.2 × 7.9 in · weight: 15 kg |
Hold luggage not booked in advance, paid at the bag drop desk (up to 23 kg) first bag: GBP 60 at the airport |
source 2026-10-07 |
Questions
- Why does my bag pass on one airline and fail on another?
- Airlines publish different limits. Some use three sides, some use a linear total (length + width + height). Both are handled, and each result states which rule applied.
- Does the personal item limit matter?
- Yes. A cabin bag that fits the overhead bin can still be too big to go under the seat in front of you, and on some fares the personal item is the only free allowance.
- Is online cheaper than the airport?
- Usually, and by a published margin. The fee estimate shows both channels so the difference is visible before you choose.
- How current are the rules?
- Each rule carries the date it was last verified against the airline's own page. Anything older than a quarter is flagged.
- Do you store my bag or my searches?
- No. The dimensions you type are used in the browser to produce the result and are not sent anywhere.