Methodology
CabinFit compares your packed bag dimensions with published airline baggage dimensions, source links, and last-checked dates. It is a dimensional planning tool, not a guarantee of airport acceptance.
Each airline rule stores published personal item or carry-on dimensions, fare notes, source URL, source type, confidence level, and last checked date. Rules may vary by fare type, route, aircraft, airport staff, packing, or ticket conditions.
Measure the packed outside dimensions of your bag, including wheels, handles, and pockets. The checker converts inches to centimeters when needed and compares all six possible orientations, so a bag may match the listed dimensions if it can be rotated.
CabinFit says whether a bag matches or exceeds published dimensions. It does not say your bag will be accepted, because final decisions can depend on ticket conditions, aircraft, route, airline staff, weight, and updated policies.
CabinFit keeps official source links visible where available. Source links are checked automatically for broken destinations, while baggage dimensions and fare conditions remain manually reviewed. Always verify your allowance with your ticket and the official airline page before travel.
A source check is marked Current for 30 days, Review due from day 31 through day 60, Outdated from day 61 through day 90, and Verification required after 90 days. These labels describe when CabinFit last reviewed its source data; they do not guarantee that an airline policy has not changed sooner.
CabinFit does not scrape baggage dimensions or use real-time airline APIs. Airline rules are updated manually in the project data files, with automated checks used only to identify inaccessible or broken source links.
