Start with the baggage option on your booking, then measure the bag you will actually pack. A ticket with a small bag, a Priority cabin bag and a 10kg check-in bag lead to different airport steps. “Cabin size” on a suitcase label does not tell you which one you bought.
Official guidance checked September 8, 2026. The included small bag is 40 × 30 × 20 cm. Use the table below to distinguish it from the two 10kg options.
Which bag goes where?
| Booking option | Allowance | Airport action |
|---|---|---|
| Included small bag | One bag, 40 × 30 × 20 cm | Keep under the seat in front. |
| Priority & 2 Cabin Bags | Small bag plus one bag up to 10kg, 55 × 40 × 20 cm | Second bag goes in the overhead locker. |
| 10kg Check-in Bag | A purchased hold-baggage allowance | Drop at the check-in desk before security. |
Source: Ryanair's current bag policy. Check the dimensions and weight for the exact checked-bag product in your booking; do not infer cabin access from “10kg.”
Will the bag you own work?
Compare all three outside measurements, not just a liters label. For example, a packed bag measuring 40 × 30 × 22 cm is too deep for the small-bag allowance above even though two dimensions match. Turning the bag does not remove the extra depth. Try removing a bulky item, close it and measure again.
Check structure before buying a replacement
A rigid frame or protruding wheels cannot shrink when you remove a shirt. A soft front pocket can also make a partly empty backpack too deep. Test your own bag before buying another; a shop's “Ryanair approved” label is not evidence that your packed version fits.
Choose by what you need to carry
Lay out your essential items first. If they fit the small bag, compare that option with the extra cost and convenience of a second bag. If they do not, compare the options offered for each flight and each traveler. A checked bag may mean allowing time for bag drop and collection; keeping a second bag in the cabin means carrying it through the airport yourself.
Use the total shown in your booking and the current Table of Fees. Do not assume the outbound price applies to the return or that an upgrade is always worthwhile below a universal price threshold.
If Priority is unavailable, Ryanair identifies a 10kg Check-in Bag as an alternative. It must go to the check-in desk before security. Buying it does not let you take a second bag straight to the gate.
Measure the packed bag in three directions
- Pack the actual clothes, toiletries, electronics and extras. Close all compartments.
- Stand the bag beside a wall or other straight edge. Measure its furthest outside points along three perpendicular directions, including fixed handles, wheels and filled pockets.
- Write down those three measurements and compare them with your allowance. Check the thickest part, not an empty seam.
- If using a box as a practice check, measure the box's inside space. A home test helps identify a poor fit; it does not reproduce an airline inspection or guarantee boarding.
- For a weight-limited bag, weigh it after packing. If you remove or add items, recheck both weight and shape.
A useful countercheck: a bag can be below its weight limit but too large, or small enough but too heavy. Fix the failing measurement; one does not compensate for the other.
What happens if the bag does not fit?
Ryanair says a small or 10kg cabin bag that does not fit its sizer can be refused at the gate, or placed in the hold for a fee where that option is available. Paying a fee is therefore not a guaranteed fallback. Read the official gate procedure and current fee table before departure.
Prepare for the allowance you booked
Do not rely on avoiding a size check, concealing a bulge, or being allowed to repack at the gate. If your bag is too big at home, reduce the contents, choose another bag or review available baggage options before reaching the airport.
Exceptions that need their own check
Duty-free purchases
Ryanair permits a duty-free bag containing duty-free goods alongside cabin bags. That is not permission to use a shopping bag for extra ordinary luggage. Airport security and connecting-flight liquid restrictions still need separate checks. See permitted items on board.
Infants and baby equipment
Infants aged 8 days to 23 months have no cabin-bag allowance. For an infant on an adult's lap, Ryanair allows a baby bag up to 5kg, 45 × 35 × 20 cm, and two baby-equipment items per child free. Use the infant baggage section for the arrangement you are booking.
Medical equipment and batteries
Medical equipment carried in addition to the small bag needs pre-clearance from Ryanair's Assisted Travel Team. Check the medical-item and battery instructions before packing. If a bag must go in the hold, remove power banks and spare lithium batteries; the current guidance requires these on your person or in the underseat bag, not the overhead locker. Check capacity and protection requirements too.
Pack from a list, then test the result
Start with necessary documents, medication, clothing for the weather and the electronics you need. Decide how you will handle laundry before adding duplicate outfits. Put items you need to reach during the journey where you can retrieve them without emptying the bag. Compression can change shape, but does not remove weight.
My before-airport checklist
Check marks are for this visit and are not saved. Use your browser's Print option for a paper copy.
A connection or another airline on the return?
Write a separate baggage line for each flight: airline, included items, dimensions, weight and where to drop the bag. A Ryanair add-on does not establish another carrier's allowance. Check that carrier's official guidance rather than using a single budget-airline comparison as permission to board.
Two final questions
Does Priority remove size checks?
No. The official gate procedure above covers both small bags and 10kg cabin bags. Prepare both to their limits.
Does TripPack's packing list certify my bag?
No. It helps you choose items. You still need to measure the packed result and compare it with your own booking.
Correction, September 8, 2026: replaced the previous small-bag dimensions, unsupported flight experience and inspection guarantees; corrected duty-free and infant advice. Official airline guidance and your booking are the sources for current travel rules.