Mostly one point, and it matters: airlines change baggage rules without notice, and the gate agent’s decision is final. Check with your airline before you fly.
Every airline limit on this site was checked against that carrier’s own published policy on the date shown, and each figure links to the page it came from. Bag dimensions come from manufacturer specifications.
None of that makes it a guarantee. Airlines revise baggage policy without announcement, often alongside fare changes. Manufacturers change specifications between production runs. Gate agents apply judgement, and on some carriers they have historically been paid to apply it strictly.
Use this site to narrow your choices, then confirm with your airline before you travel. We cannot be responsible for gate fees, checked-bag charges, missed flights or any other loss arising from relying on information here.
Where an airline publishes no figure, we say so rather than inventing one. Where a bag is close enough to a limit that the outcome depends on the agent, we mark it borderline. Where a claim is widely repeated but we could not source it, we leave it out and say why. Those judgements are ours and you are welcome to disagree with them.
As an Amazon Associate we earn from qualifying purchases. Product links are affiliate links and cost you nothing extra. We are not paid by any airline or luggage manufacturer, and no brand has paid to appear on this site or to be ranked above another. Bags are included because they fit the numbers.
The measurements themselves are facts and facts are not ours to own — take them. The writing, the design and the fit calculations are our work; please do not republish those wholesale. A link back is always welcome.
This is a small site run by one person. It is provided as-is, with no promise that it will be available, current or error-free.
Found something wrong? Tell us — corrections are genuinely welcome and we act on them.
Last updated 2026-08-12.
Manufacturers publish dimensions inconsistently, and a “20-inch” spinner is almost never 20 inches once you count the wheels. Where a brand states dimensions including wheels and handles, that’s the number we use. Where it only publishes the case, we say so on the card. Airlines measure the outside of your bag — wheels, handles, straps and all. Anything marked borderline is down to the gate agent, and remember that a soft bag squashes into a sizer while a hard shell won’t.
As an Amazon Associate we earn from qualifying purchases. Product links on this page are affiliate links and cost you nothing extra.
Limits verified August 2026 against each carrier’s published policy. Airlines change these without notice — always confirm before you fly. Spirit Airlines ceased operations on 2 May 2026 and is no longer listed.
Airline Bag Size Checker v1.0.15 · last updated 2026-08-12