Guides
Each guide takes one decision you make before a flight — how to measure the bag, whether to count the wheels, what to check on a power bank — and answers it from the rules we have recorded, not from a general rule of thumb. Where the recorded rules disagree with each other, the guide says so instead of picking the comfortable answer.
What these guides can and cannot promise
- Every count on every page is computed at build time from the same rows you can download, so it can be re-derived rather than taken on trust. If a number here disagrees with a page elsewhere, the download is the tie-breaker.
- Coverage is 155 airlines; verified against the airline's own page line by line is 0. These guides describe what is published, and a rule can be recorded correctly and still be applied differently at the gate.
- A guide never returns a verdict on your bag. "This fits" and "this does not" come from the checker, which applies the conditions; a guide only explains which number to measure and which condition to look for first.
Published guides
- Linear Size Limits: 9 Airlines With Only a Total
A three-side total and a per-side limit are not two ways of saying the same thing. 9 airlines publish only the total, and 41 publish both — here is what each leaves open, and how to measure so the number you check is the number that binds.
Published
- Do Bags Include Wheels? 17 Airlines Say Yes
Of 155 airlines, our notes record an explicit wheel-and-handle statement for 22. The split is lopsided enough to settle how you measure — with exactly one carrier going the other way.
Published
- Power Bank Rules: 9 Airlines Differ From 100 Wh
Almost every recorded deviation keeps the 100 Wh line; what differs is what happens above it and how many you may bring. Both matter only if you can read the Wh off your own power bank first.
Published
The three numbers these guides turn on
| Measurement | Value | Why it decides the method |
|---|---|---|
| Allowances that publish only a three-side total | 15 of 370 | On these rows nothing constrains the shape, so a long thin bag can pass a test a normal one fails. |
| Airlines that state wheels and handles are measured | 17 of 22 with a statement | The stated case is overwhelmingly "included", so measuring without wheels is the risky direction. |
| Airlines whose recorded cabin power-bank ceiling is 100 Wh | 8 of 9 recorded deviations | The ceiling is shared; what differs is what happens above it and how many you may bring. |
Data insights: how the counts were made · Collection and checking method · Download the dataset