What is the carry-on luggage size under the new European regulations?
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The member airlines of Airlines for Europe have approved a common format for free small cabin bags: 40 × 30 × 15 cm. This ultra-compact size must fit under the seat, and its implementation is scheduled for the end of summer 2025. Only soft bags or very slim backpacks will be able to comply. Most current hard-shell suitcases are too thick. At sac-cabine.com, we are already preparing a range of cabin bags and suitcases perfectly suited to this new standard.
Why is this new cabin bag format becoming the standard in Europe?
- European standardization of under-seat sizes
- Suitable only for soft bags, flat backpacks, or vanity cases
- Hard-shell suitcases ≥18 cm are too thick and non-compliant
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FAQ about the new cabin luggage regulations
When will this format become mandatory?
By the end of summer 2025, all A4E airlines will be required to implement it.
Is it really that small?
Yes, 15 cm of depth is equivalent to a very thin bag — existing small suitcases are already 18 cm.
Can airlines still allow larger sizes?
Yes, some like Ryanair may offer optional, more generous formats (e.g., 40×30×20 cm).
What will we offer on sac-cabine.com?
Under-seat bags in the 40 × 30 × 15 cm format, compliant with the new European regulations, as well as a selection of standard cabin luggage adapted to the dimensions allowed in the cabin by various airlines.
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