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The best cabin suitcase for budget airlines is one that fits the smallest size limit you are likely to meet, weighs as little as possible empty and still holds what you need. Airline rules differ, and the free bag allowance is often much smaller than a standard cabin trolley case. So the right choice depends on which airline you fly most and whether you pay for a larger bag.
This guide explains how cabin suitcase sizes work, what to check for easyJet and Ryanair, whether a hard shell or soft case is better, how light a cabin case should be and what to look for when you buy. Airlines change their size and weight rules, so always check the official baggage page for your airline and fare before you fly.
How cabin baggage rules work on budget airlines
Most budget airlines split cabin bags into two tiers. The first is a small bag that fits under the seat, usually included in the base fare. The second is a larger cabin bag that goes in the overhead locker, which may cost extra or come with a priority or upgraded fare. Because the free allowance is the smaller one, many shoppers buy a case that is too big for the free tier, and then pay at the airport.
- Small under-seat bag: usually free, with tight dimensions, and designed for a backpack or soft holdall.
- Larger cabin case: usually a paid option, and often limited by weight as well as size.
- Checked bag: a separate hold bag, charged as an extra.
Always measure the whole bag, including wheels, handles and pockets. Airlines measure the outer dimensions, not the internal space.
What is the best cabin suitcase size for easyJet?
easyJet has published separate limits for a small under-seat bag and for a larger cabin bag, and the larger bag has usually required a paid option. The dimensions and weight limits have been updated over time, so check the current rules before you buy. We cover the details in our guide to easyJet hand luggage size and weight.
- If you want to travel with the free allowance, choose a soft bag that fits under the seat.
- If you need more space, check the cost of the larger cabin bag option when you book, and compare the total with a checked bag.
- Measure your case with its wheels and handle, and compare the figures with the current easyJet baggage page.
What is the best size for Ryanair cabin bags?
Ryanair has a very small free personal bag allowance, and a larger cabin bag usually needs a priority or paid option. Staff at the gate may check bags, and a bag that is too big can lead to a fee. Our guide to Ryanair hand luggage size and how to avoid gate fees explains the rules and the common mistakes.
- If you only want the free bag, a compact backpack or soft holdall is a safer choice than a trolley case.
- If you pay for the larger bag, check its maximum size and weight on the Ryanair site before you buy a case.
- Pack so that the bag is not bulging, because a full bag can be hard to fit in a sizer.
Other airlines have different rules. See our guides to Jet2 hand luggage size and British Airways hand luggage size if you also fly with those carriers.
Is a hard shell cabin suitcase better?
Neither type is better in every case. The right choice depends on how you travel, how strict the airline is and what you pack.
Hard shell cases
- Pros: they protect fragile items, look neat and often shrug off rain.
- Cons: they have a fixed shape, so they cannot squeeze into a tight sizer, and they can be heavier than soft cases. They can also scuff and crack under stress.
Soft shell cases
- Pros: they are flexible, often lighter and can squash into a bag sizer or locker. External pockets are handy for documents and liquids bag.
- Cons: they protect contents less, they can bulge when overpacked and pockets can add to the measured size.
If your main concern is a strict size limit, a soft bag has an advantage. If you carry breakable items or want a tidy look, a hard case may suit you better. Either way, check the real measurements rather than relying on the label, because marketing sizes do not always match airline limits.
How light should a cabin suitcase be?
As light as is practical. Weight limits for cabin bags are often shared between the bag and its contents, so every kilo the empty case weighs is a kilo you cannot pack. A lightweight case gives you more room for your allowance.
- Check the weight of the empty case in the product details, and compare similar models.
- Look for lightweight materials, but do not sacrifice build quality for a small weight saving.
- Remember that wheels, handles and frames add weight. A bag without wheels can be lighter.
- Weigh your bag at home when it is packed, using luggage scales.
Not every airline enforces cabin bag weight in the same way, so do not assume a bag will not be weighed. Check the conditions for your fare.
What to look for when buying a cabin suitcase
Dimensions
Choose a bag whose outer dimensions are within the limit of the tier you plan to use, with a little room to spare. If a case is exactly on the limit, a slightly overfilled bag can fail a check.
Weight
Compare the empty weight, and think about how much you usually pack.
Wheels and handle
Smooth wheels and a sturdy telescopic handle make airports easier. Two wheels are lighter, while four spinner wheels are easier to steer. Check how much they add to the overall size.
Zips and build quality
Strong zips and stitched seams matter, because cabin bags are lifted and squashed often. Read recent buyer reviews from several retailers, and look for repeated comments about zips and wheels.
Organisation
Internal compartments, a laptop sleeve and an external pocket for liquids can make security checks quicker.
Warranty and returns
A longer warranty can be a sign that a maker trusts its product, but read the conditions. Check the retailer returns policy, in case the bag is too large for your airline.
Packing tips for a small cabin bag
- Choose a capsule wardrobe in matching colours, so each item works with several others.
- Wear your bulkiest items on the plane.
- Use packing cubes to compress clothes and keep the bag neat.
- Carry liquids in a clear bag within the security limits, and check the current rules at your airport.
- Keep documents, chargers and medication in an easy-reach pocket.
- Leave some space, because souvenirs and shopping need room.
If you are travelling from the South East, our holidays from Gatwick guide covers airport planning, and our cheap holidays guide explains how to keep the total trip cost down, including bag fees. Our travel insurance guide is also useful for checking what baggage cover includes.
Which should you choose: a case, a backpack or a holdall?
- Backpack: flexible, easy to carry and often the best way to keep within the free allowance.
- Soft holdall: light and squashable, though less comfortable to carry for long distances.
- Trolley case: easier to wheel, and best if you pay for a larger cabin bag or fly with an airline that has more generous limits.
Think about how you will actually use the bag. A backpack suits short trips and hostel or city stays, while a trolley case suits business travel and smooth airport corridors.
Frequently asked questions
Can I take a cabin suitcase on a budget airline for free?
Often the free allowance is a small under-seat bag, and a larger cabin case may cost extra. Check your airline and fare.
Do airlines measure cabin bags?
Some do, particularly at the gate, and bags that exceed the limits may be charged or moved to the hold. Treat the published limits as firm.
Do wheels count towards the size?
Generally yes. Airlines measure the whole bag, including wheels and handles, so check the outer dimensions.
Is a bigger bag worth paying for?
It depends on the fee and on how much you need to pack. Compare the cost with checking a bag, and consider how long you are away.
How do I know the size is right for my flight?
Check the airline baggage page for your fare type, and measure your bag at home. If you are close to the limit, choose a smaller one.
Are lightweight cases less durable?
Not necessarily, but very light cases can have thinner materials. Read recent reviews and check the warranty.
The short version
Pick a cabin bag based on the airline you fly most, measure the whole bag, favour a low empty weight and decide between hard and soft based on the size limit and what you pack. Check official airline rules before you fly, because limits change. For more advice, browse our cheap holidays and city breaks guides.