Carry-on luggage under $100: what to check before you buy

A $90 carry-on used on 40 flights costs $2.25 a trip. A $40 one that breaks after five costs $8 a trip. Luggage is where cheap gets expensive.

You can still spend under $100 and get something solid. You just need to know where to look.

Soft shell or hard shell?

Soft shell gives a little when you pack, has outside pockets and handles scuffs well. Fabric can stain and is less protective if you bring fragile items.

Hard shell protects what is inside and looks neat for longer. It cracks in cold or under heavy hits, and it has no give for overpacking.

If you pack tight and travel often, soft is more forgiving. If you carry fragile items, hard has the edge.

Check the size rules first

Airlines set their own limits. A common carry-on size is around 22 x 14 x 9 inches including wheels and handles, but this varies. Budget airlines are often stricter. Look up your airline before you buy, and measure the bag with wheels included.

Six checks that matter

1. Wheels. Spinner wheels roll in any direction. They should feel smooth and not wobble.
2. Zips. Pull them hard. Thin, loose zips are the first part to fail.
3. Handle. It should extend without sticking and not rattle.
4. Stitching. Look at corners and handle mounts, where stress builds.
5. Weight. A light bag leaves you more weight allowance for what you pack.
6. Warranty. A multi-year warranty tells you the maker expects it to last.

Walk away if

• The listing gives no dimensions or weight.
• Several reviews describe wheels snapping on a first trip.
• The maker offers no warranty at all.
• The handle wobbles in the product video.
• The price is far below similar bags with no explanation.

At this price you get / do not get

You get: - Decent wheels and a handle that works - A bag that lasts several years of occasional travel - A reasonable weight

You do not get: - Heavy-duty frames - A lifetime warranty - Built-in tech such as chargers (often a weak point)

Is it worth it?

Divide the price by the number of trips you expect. If you fly twice a year, a $90 bag costing about $9 a trip over five years is still fine. Stretching past $100 for a stronger warranty can make sense for frequent travelers. See the cost-per-use method to compare. If you are also buying a bag for daily use, read the work backpack guide.