Published 9 February 2025 | Updated 13 October 2026 by Kate Acaster
Updated October 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.
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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 44-litre hard-shell case with 360-degree spinner wheels, a telescopic handle and a built-in three-digit combination lock. At 4.6 stars from 31 Amazon reviews, it is a newer listing with a small but positive record. At around £60 to £70 it costs more than a soft-shell alternative, but a hard shell gives more protection if the bag ends up in the hold.
Best Budget Choice:
FLYMAX 55x35x20 Cabin Luggage
The FLYMAX is the budget pick here, usually around £25 to £35. 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 around £110 to £140. It is a soft-shell polyester spinner that Samsonite lists at 55x35x20cm and 35 litres, with a TSA lock and a front pocket, so it sits inside KLM’s 55x35x25cm limit with 5cm to spare on depth. 1,195 Amazon buyers rate it 4.5 stars. It’s the pick for business travellers who want an established brand name on a case that fits KLM’s rules.
Best Backpack:
Kono Cabin Backpack 55x35x20cm
The Kono is a 38-litre cabin backpack that weighs 0.75kg empty. At 55x35x20cm it sits inside KLM’s 55x35x25cm cabin bag limit, so use it as your main carry-on, not as the personal item: it is far too big for KLM’s 40x30x15cm under-seat allowance. At around £40 it has a suitcase-style opening, side compression straps, water-resistant polyester and a strap that slides over a suitcase handle.
Best Premium Backpack:
Samsonite MySight 17.3-Inch Laptop Backpack
A Samsonite backpack with a recycled PET exterior, inside KLM’s 55x35x25cm cabin bag limit at 46x32x17.5cm. It is too big for the 40x30x15cm personal item allowance, so it counts as your cabin bag. 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 around £75 to £100. 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 2027
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.
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 the bag sizes are the same as in Economy.
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 | Around £60 to £70 | Frequent travellers |
| Best Budget | FLYMAX 55x35x20 Cabin Luggage | 55 x 35 x 20 cm | Around £25 to £35 | Budget-conscious travellers |
| Best High-End | Samsonite Base Boost Spinner | 55 x 35 x 20 cm | Around £110 to £140 | Business travellers |
| Best Backpack | Kono Cabin Backpack 55x35x20cm | 55 x 35 x 20 cm | Around £40 | Versatile, organised use |
| Best Premium Backpack | Samsonite MySight Laptop Backpack | 46 x 32 x 17.5 cm | Around £75 to £100 | 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 checked against several airline allowances 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.
Kate has travelled through Europe, South America and beyond, usually with a notebook, a half-formed plan and a strong opinion on airport snacks. At Flight Tribe, her work focuses on helping UK travellers understand what is included, what costs extra, and whether a trip is worth booking at the price shown.
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