Sources we use
4 kinds of source count: the airline's baggage pages, its conditions of carriage, its help center and its own newsroom. News sites, forums and other baggage sites can alert us to a change, but we publish it only once the airline confirms it. When a rule appears only in another language, we quote it as published and add an English translation.
How we record each rule
30 words is the longest quote we take from any source. Each rule carries its value, the unit the airline uses, the quote, the source and the date we checked it. Sizes and weights appear in the airline's own unit first, with the converted value in parentheses. Fees appear in the currency the airline publishes.
What the status labels mean
4 labels show how solid each number is. Verified means we quoted it from an official page. Not published means the airline does not state that rule, and we say so instead of guessing. Estimate means the airline's page could not be read, so the value is our best reading of its last published policy. Conflict means two official pages disagree, and we show both.
Conversions and rounding
1 inch is 2.54 cm and 1 pound is 0.4536 kg, the factors we use for every conversion. Metric values are rounded to whole centimeters and kilograms. When an airline publishes both units, we show its own pair exactly instead of converting.
How often we recheck
30 days is the longest any airline page goes without a recheck. We also recheck when an airline announces a fee change, launches a new fare or reissues its conditions of carriage. Each page shows the date of its last check.
How we log changes
1 changelog entry is added each time an airline changes a published rule, with the date it takes effect and the old and new values. Every entry also appears on the policy changes page.
Limits of our data
Some airlines set different limits by route, aircraft, fare or travel date, and a few change rules with little notice. We show the scope of each rule where the airline states it. Check your booking and the airline's site before you fly, because gate staff make the final decision on any bag.