Why Choose a 55x40x20cm Suitcase
At 20cm deep, this is about as tight as cabin sizes get, which is exactly why it clears the strictest UK gate checks. It strikes a fair balance between packing space and a slim enough profile to fit the sizer cage, making it a solid choice for weekend breaks, short business trips, and quick city stays.
Key benefits:
- Compact dimensions that are easy to handle, lift, and store
- Enough space for a few days away or a work trip without checking a bag
- Slim profile built to clear cabin baggage sizers at UK airports
- Fits comfortably in overhead lockers on most UK and European routes
- A sensible choice for regular flyers who'd rather skip the bag drop queue
Popular Features in Our Collection
Depending on the model, you'll find features built for everyday UK travel:
- Lightweight suitcases that help you stay within cabin weight limits while making lifting into overhead lockers easier
- Four spinner wheels for smooth 360° movement through UK airports, train stations, and city streets
- TSA-approved locks to help keep your belongings secure on international trips
- Organised interiors with compartments, dividers, and packing straps to keep everything in place
- Expandable suitcases that give you up to 3cm of extra space when needed, transforming from 55 x 40 x 20cm to 55 × 40 × 23 cm luggage for more flexible packing
Which UK Airlines Use This Cabin Size
A 55 x 40 x 20cm cabin bag matches the strict allowance for Ryanair-approved cabin luggage, and it comfortably fits within the larger allowances offered by other UK carriers, including:
- Wizz Air-approved suitcases in this size sit within the airline's 55 x 40 x 23cm allowance available with WIZZ Priority
- easyJet cabin luggage options fit within the airline's 56 x 45 x 25cm large cabin bag allowance
- Jet2-approved cabin luggage and British Airways-approved cabin luggage both use a 56 x 45 x 25cm standard allowance, so a case this size sits well within it
- TUI and Vueling cabin suitcases may also fit, depending on the fare type and included baggage allowance
Frequently Asked Questions
Not always. On some airlines, personal items are limited to small backpacks or handbags. Ryanair, easyJet, and Wizz Air follow that approach on certain fares. A 55 x 40 x 20cm case is sized for the overhead locker, not for under-the-seat storage, so check your ticket type before you fly.
55x40x20cm is roughly 21.6 x 15.7 x 7.9 inches.
Yes. UK airlines typically measure with the wheels attached and the handle extended, not just the main body. Measure your case fully extended before you travel.
Selected models include an expansion zip that adds a few centimetres of depth when needed. Check the product page to see if a specific model is expandable.