Only priority boarding passengers will be permitted to take one small bag (40cm x 20cm x 25cm), plus a larger cabin bag (55 x 40 x 20cm) with a maximum weight allowance of 10kg into the cabin free of charge. Non-priority customers can only bring one small bag (40cm x 20cm x 25cm), that must fit into the sizer.

For Ryanair in 2026, the "small cabin bag" (the only bag included for free in the Basic fare) must fit within the maximum dimensions of 40cm x 20cm x 25cm. This bag must be able to fit under the seat in front of you. A grounded and strict "hard-fail" reality is that Ryanair uses rigid metal "sizers" at the boarding gate; if your bag is even slightly over, you will be charged a "Gate Bag Fee" of €45 to €70, and the bag will be placed in the hold. A supportive peer tip: many "laptop backpacks" or large handbags meet these dimensions, but overstuffing them can make them "bulge" past the 20cm depth limit. For a more supportive and "Gold Standard" experience, many travelers purchase the "Priority & 2 Cabin Bags" add-on, which allows you to bring this small bag plus a 10kg wheelie bag (55cm x 40cm x 20cm) for the overhead bin. To avoid the stress of the gate-check, always measure your bag while it's fully packed, ensuring it remains "squishable" enough to pass the sizer test.