Baggage numbers are worth nothing if they are wrong, and most of the ones online are copied from each other. Here is exactly where ours come from.
Carry-on dimensions, weight limits, checked allowances and fees on this site are read off the airline’s own published policy page. Not from an aggregator, not from another baggage site, and not from a language model’s recollection of one. Where an airline publishes different figures in different places — and several do — we use the one on the baggage policy page and note the discrepancy.
Each airline record stores the date it was last verified and a link to the page the figures came from. Both appear on the page. If you disagree with a number, you can go and check it against the same source we used in one click.
We leave it blank and say so. An airline page here with no carry-on dimensions means we have not yet confirmed them, not that the airline has none. A guess that looks like data is worse than an obvious gap, because a gap sends you to check and a wrong number does not.
The same applies to items. An item ruling publishes only once we have confirmed it against the relevant security authority and, where carriers differ, against the carriers.
Airlines change baggage policies without announcement. We re-verify on a rolling schedule and log every change on the policy change tracker, which exists purely so you can see whether this site is being maintained or has been left to rot.
Rules get interpreted. “Approximately one quart” is not a number, and “subject to space availability” is not a policy. Where we interpret, we say we are interpreting and we explain the reasoning, so you can disagree with it. Where the honest answer is “ask your airline”, that is what we print, even though it makes for a worse page.
If something here is wrong, tell us and we will fix it and date the fix. Contact us with the page and the source that contradicts it. We would much rather be corrected than be confidently wrong in front of someone about to board a flight.