Last updated: August 2026
Updated June 2026. The KLM carry-on bag size limit is 55 x 35 x 25 cm in Economy (including handles and wheels), plus a personal item up to 40 x 30 x 15 cm and a combined weight limit of 12 kg. Business Class allows two cabin bags at the same KLM carry-on bag size, up to 18 kg in total. You can compare it with every major carrier in our UK airline hand luggage size guide. Comparing airlines? See all nine carriers side by side in our airline luggage checker.
Picking the right carry-on bag for a KLM flight can save you stress, money, and a last-minute scramble at the gate. Nobody wants to be forced to check in their bag because it’s a few centimeters too big. This guide breaks down KLM’s carry-on rules and gives you top luggage picks that fit within their policies.
Best Carry-On Bags That Fit KLM’s Baggage Policy
Best Overall Carry-On Bag:
Cabin Max Santa Cruz 55x35x25 Cabin Suitcase
The Santa Cruz is built to KLM’s exact 55x35x25cm limit, so there’s no guesswork on sizing. It’s a hard-shell case with four spinner wheels, a telescopic handle and a built-in TSA lock. At 4.7 stars from 31 Amazon reviews, it has a solid track record for the price. Cabin Max is a brand we’ve worked with before on our easyJet carry-on guide, and the build quality holds up here too. At £59.95 it costs more than a soft-shell alternative, but the hard shell protects better against rough handling.
Best Budget Choice:
FLYMAX 55x35x20 Cabin Luggage
The FLYMAX is the budget pick here, priced at £34.99. At 55x35x20cm it sits comfortably inside KLM’s 55x35x25cm limit, with 5cm of depth to spare. It’s a hard-shell ABS case with a built-in 3-digit combination lock and four spinner wheels, so security and manoeuvrability aren’t sacrificed for the lower price. It won’t win on styling or extra features, but it does the job without fuss, a sensible choice if budget is your main concern.
Best High-End Carry-On:
Samsonite Base Boost – Spinner Hand Luggage
The Samsonite Base Boost costs more than the others at £119.87, and it looks and feels it. Built from lightweight but durable materials, it has a telescopic handle and secure zippers, and the overall finish is a clear step up from budget alternatives. Samsonite’s reputation for durability holds here, and it’s the pick for business travellers who want a case that looks the part as well as fitting KLM’s 55x35x25cm limit.
Best Backpack:
Kono Cabin Backpack 55x35x20cm
The Kono is compact but surprisingly roomy, and works well as an under-seat bag if you’re travelling with a separate cabin case. At £40.99 it includes multiple compartments, a USB charging port and water-resistant material, useful extras for keeping a phone charged or valuables organised in flight. At 55x35x20cm it sits well inside KLM’s 55x35x25cm limit, so it also works as a standalone carry-on for shorter trips.
Best Premium Backpack:
Samsonite MySight 17.3-Inch Laptop Backpack
A genuine Samsonite backpack made from recycled PET, well inside KLM’s 55x35x25cm limit at 46x32x17.5cm. It has a built-in USB port with an internal powerbank pocket, a detachable pen pouch and a padded sleeve for a 17.3-inch laptop, at £79.20. It’s a solid pick for business travellers who want a lasting bag from an established luggage brand, with practical extras that make working on the move easier without adding bulk.
KLM Carry-On Bag Size and Cabin Baggage Policy 2026
Economy Class Allowance
- Main carry-on bag size limit: 55 x 35 x 25 cm
- Personal item size limit: 40 x 30 x 15 cm
- Total weight allowance: 12 kg combined
Go over the limit? You might have to check your bag and pay extra fees, definitely something to avoid.
Business Class Allowance
- Two carry-on bags allowed, each up to 55 x 35 x 25 cm
- One personal item up to 40 x 30 x 15 cm
- Total weight allowance: 18 kg combined
If you’re flying Business Class, you’ve got a bit more weight to play with, but note the bag dimensions are no bigger at all.
Cabin Bag Fees & Restrictions
- If your carry-on is too big or too heavy, you’ll have to check it at the gate (and pay for it).
- Basic is the strictest fare. It includes the under-seat bag only, so the 55 x 35 x 25 cm cabin bag costs extra. Light, Standard and Flex all include it. KLM sells Basic on selected routes, so check the fare you are booking.
Best KLM Carry-On Luggage Comparison Table
| Category | Bag | Size | Price | Best for |
|---|---|---|---|---|
| Best Overall | Cabin Max Santa Cruz Cabin Suitcase | 55 x 35 x 25 cm | £59.95 | Frequent travellers |
| Best Budget | FLYMAX 55x35x20 Cabin Luggage | 55 x 35 x 20 cm | £34.99 | Budget-conscious travellers |
| Best High-End | Samsonite Base Boost Spinner | 55 x 35 x 25 cm | £120 | Business travellers |
| Best Backpack | Kono Cabin Backpack 55x35x20cm | 55 x 35 x 20 cm | £40.99 | Versatile, organised use |
| Best Premium Backpack | Samsonite MySight Laptop Backpack | 46 x 32 x 17.5 cm | £79.20 | Business travellers and digital nomads |
Before buying, double-check KLM’s latest baggage rules, things can and do change. Check the current allowance on KLM’s official hand baggage page, and for bags tested against several airline sizers see our best carry-on bags guide. Connecting onward with another airline? Compare cabin bag rules for British Airways, Vueling and Aer Lingus before you pack.
Frequently asked questions
What is the KLM carry-on bag size?
KLM allows one cabin bag up to 55 x 35 x 25 cm, including handles and wheels. You can also bring a personal item up to 40 x 30 x 15 cm.
What is KLM’s hand baggage weight limit?
In Economy, your cabin bag and personal item can weigh up to 12 kg combined. Business Class raises this to 18 kg.
Can I take a full cabin bag on a KLM Basic fare?
Not on Basic. KLM’s Basic fare includes the under-seat bag only, and the 55 x 35 x 25 cm cabin bag costs extra, though you can buy one up to four hours before departure. Light, Standard and Flex all include it. KLM sells Basic on selected routes, so check which fare you are booking.
What are KLM’s personal item dimensions?
Your personal item, such as a handbag or laptop bag, must fit within 40 x 30 x 15 cm. It sits under the seat in front of you.
What happens if my cabin bag is too big on KLM?
If your bag is over 55 x 35 x 25 cm or too heavy, KLM can ask you to check it at the gate, usually for a fee. Measure your bag with the wheels and handles included to avoid this.
Does KLM Business Class get a bigger baggage allowance?
Business Class passengers can bring two cabin bags, each up to 55 x 35 x 25 cm, plus a personal item. The combined weight limit rises to 18 kg.
Kate Acaster is Chief Editor at Flight Tribe. She writes about practical travel planning, budget airlines, baggage rules, city breaks, beach holidays and good hotels that do not cost daft money.
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