Open data
The Airline Baggage Dataset, Free to Reuse
Every cabin-bag and personal-item limit we track for 170 airlines — as one CSV or JSON file, under CC BY 4.0. Use it in articles, apps, and research; just credit CarrySizer with a link.
Downloads
Download CSV →Spreadsheet-ready, one row per airline.Download JSON →Includes license metadata and data_version.License: CC BY 4.0 — attribution required
The dataset is published under the Creative Commons Attribution 4.0 license. Reuse it freely — including commercially — with a visible credit such as “Data: CarrySizer (carrysizer.com/open-data/)” linking back to this page. Data version: · 170 airlines, 162 active.
What each field means
| Field | Meaning |
|---|---|
| slug / name / iata | Stable airline identifier, display name, and IATA code. |
| country / region / type | Home country, region bucket, and business model (full service, low cost, ultra low cost, regional, charter). |
| operational_status | active, suspended, or ceased. Ceased carriers stay in the file for historical reference. |
| cabin_bag_* | Maximum cabin-bag length, width, and depth in cm, the weight limit in kg (empty when the airline publishes none), and how many cabin bags the base allowance includes. |
| personal_item_* | Whether a free under-seat personal item is included, plus its published dimensions and weight limit where the airline states them. |
| Unknown dimensions | Unconfirmed or conflicting cabin dimensions are null in JSON and empty in CSV. They do not mean an unlimited allowance or a guaranteed fit. Read the source evidence and confirm the booked policy. |
| Unknown inclusion | A null personal-item inclusion or cabin-piece count means the source does not establish the entitlement. Null does not mean prohibited, free, or unlimited. |
| strictness_editorial | CarrySizer's editorial enforcement rating (lenient / moderate / strict). This is our judgement, not an airline claim. |
| source_url / source_title / last_checked | The official airline page each record is based on, and the date we last verified it. |
Programmatic access
The JSON file above is a stable URL you can fetch directly from scripts and apps. AI agents and assistants can also use our Model Context Protocol endpoint, which exposes the bag-fit checker and per-airline policies as callable tools:
POST https://carrysizer.com/api/mcp/ (MCP streamable HTTP, no auth) tools: list_airlines · get_airline_baggage_policy · check_bag_fit
Please keep request volumes reasonable and cache responses; the data behind both surfaces updates at most a few times per week.