Methodology

How CarryFit compares baggage allowances

CarryFit is a public comparison helper built from airline baggage pages fetched on 2026-04-23. It is intentionally narrow: compare bag dimensions, surface weight limits when the source page states them clearly, and show fare caveats next to the result.

Core logic

  • Bag dimensions are compared in centimetres.
  • Handles and wheels should be included in the user measurement.
  • CarryFit sorts both the bag and the allowance dimensions from largest to smallest so reasonable bag rotation does not create a false fail.
  • If a bag fits on paper but leaves little tolerance, the result is marked Close.
  • If a source snapshot did not expose a single verifiable cabin-bag weight, CarryFit marks the weight as not checked rather than guessing.

Current source set

What this does not cover

  • Every fare family, route-specific exception, or elite-status perk.
  • Airport sizer tolerance, soft-bag squish, or staff discretion.
  • Real-time policy changes after 2026-04-23.
  • Cabin-space shortages that trigger free gate-checking even when a bag is technically compliant.

Why this is still useful

Most travellers first need a quick answer to a simple question: “Will this bag fit the allowance profile I care about?” CarryFit answers that question quickly and shows where the fare caveats start, so users know what to verify next instead of digging through multiple airline pages from scratch.