A European itinerary can look wonderfully simple on a map: fly into one city, take a train to another, then catch a short flight home. Your luggage has to manage a less tidy journey. It needs to fit every flight you booked, stay manageable on station stairs and accommodate the purchases that tend to appear halfway through a holiday.
The useful question is whether your packed bag meets the allowances attached to every booking. Answer that before choosing outfits, and packing for a trip with several airlines becomes much easier.
Check Every Flight Before Choosing Your Bag
Write down each flight, including connections and the journey home. Record the operating airline as well as the company that sold the ticket. On a codeshare booking, these can be different. If the baggage information is unclear, ask the airline to confirm the allowance attached to your reservation.
For each leg, check what your fare actually includes. A larger cabin bag being available to purchase does not mean you have already paid to bring one.
| Detail | What to check | Why it matters |
|---|---|---|
| Bag allowance | Whether your booking includes an underseat bag, an overhead bag or both. | A suitcase can meet the size limit but still require an additional baggage purchase. |
| Number of pieces | How many separate bags you may carry. | A handbag or laptop bag may count as an additional piece. |
| Dimensions | Each permitted dimension and how the airline measures wheels, handles and pockets. | A bag can exceed one dimension even when its overall capacity seems small. |
| Weight | Any limit per bag or combined allowance across cabin pieces. | Moving items between bags may not solve a combined-weight problem. |
| Booking confirmation | Whether any baggage upgrade appears on the correct flight. | An upgrade on the outbound flight may not cover the return or a separate booking. |
For a journey involving several airlines, CarrySizer’s route checker can help compare cabin limits across the route. Use it as a planning aid, then confirm the details against your booking and each operating airline’s current information.
Keep this information alongside your transport and accommodation reservations. Our guide to planning a trip itinerary can help you organise a holiday with several stops.
Separate Underseat Bags From Overhead Cabin Bags
“Cabin luggage” can describe two different allowances: a small bag stored beneath the seat and a larger bag placed in an overhead locker. Do not assume a ticket includes both.
For example, easyJet’s cabin baggage policy distinguishes its included small underseat bag from a larger cabin bag that requires the appropriate booking or entitlement. Check the equivalent information for every airline you will use.
If one flight includes only an underseat bag, your options are straightforward: pack within that allowance, add suitable baggage to that booking or reconsider your luggage arrangement. Permission to bring an overhead suitcase on another leg does not carry across automatically.
Find the Smallest Dimensions and Lowest Weight Limit
An airline carry-on comparison table can help you spot differences before deciding which bag to take. Compare the allowance you have booked, rather than simply choosing the largest cabin dimensions listed for each airline.
The tightest restriction may come from several flights. One might allow the least depth, another the least width and a third the lowest weight.
The example below uses hypothetical allowances for one overhead cabin bag, assuming that bag is included or purchased on every flight. These are illustrative figures, not current airline policies.
| Flight | Maximum height | Maximum width | Maximum depth | Maximum packed weight |
|---|---|---|---|---|
| Flight A | 55 cm | 40 cm | 23 cm | 8 kg |
| Flight B | 55 cm | 35 cm | 20 cm | 10 kg |
| Flight C | 56 cm | 45 cm | 25 cm | 7 kg |
| Limits shared by all three | 55 cm | 35 cm | 20 cm | 7 kg |
Here, Flight B sets the smallest dimensions while Flight C sets the lowest weight. A bag weighing 9 kg would fail the shared allowance even if it fitted comfortably within every size limit.
Follow each airline’s measurement instructions. A stated capacity in litres does not establish whether a bag fits, and adding the three dimensions together does not replace individual size limits.
Measure the Bag When It Is Packed
Check the bag you will actually travel with, rather than relying entirely on its product description. Fill it, close the zips and measure its outside dimensions using the airline’s method.
Pay attention to bulging pockets and expansion panels. A soft backpack can become deeper once packed, while an expanded suitcase may exceed an allowance it normally meets.
Weigh everything that will travel inside, including chargers, toiletries and the bag itself. Packing cubes can organise clothing, but compression does not reduce its weight.
Pack for Stations, Stairs and Hotel Changes
A bag that rolls smoothly through an airport may feel very different on an apartment staircase. Think about the least convenient transfer on your route: a crowded train, uneven paving or accommodation without a lift.
Try your packed arrangement at home. Walk with it and, if comfortable for you, carry it up some stairs. Check whether you can still reach a ticket or use a handrail.
If you are comparing backpacks, our carry-on backpack guide covers different layouts and features. Check any candidate against your own flight allowances before buying.
A foldable day bag can be useful once you arrive. On flights that permit only one piece, keep it inside your main bag unless the airline explicitly allows it separately.
Build a Wardrobe You Can Repeat
Lay out clothing by activity rather than assigning a new outfit to every day. The same trousers might work for sightseeing, a train journey and a casual dinner with different tops or layers.
Check the forecast for every destination. A trip combining a Mediterranean city with an Alpine stop needs a different selection from a week in one warm region.
Make a realistic laundry plan. Confirm access to a washing machine or laundrette, and allow drying time. Hand washing is less useful when you change accommodation every morning.
Footwear deserves particular attention because it takes up awkward space. Choose comfortable shoes suited to your planned activities, then question any extra pair packed for an occasion you have not scheduled.
Keep Security Checks and Gate-Checking in Mind
Airline baggage allowances and airport security restrictions are separate checks. Confirm the liquids and screening instructions for your departure airport and any connecting airport where you will pass through security again.
Keep documents, medication and valuables accessible. A bag that meets the published allowance can still be placed in the hold for operational reasons, so prepare to remove essential items quickly.
The European Union Aviation Safety Agency’s dangerous goods guidance explains that spare lithium batteries and power banks must travel in cabin baggage, with protection against short circuits. Remove them before handing over a bag for the hold, and check your airline’s capacity, quantity and usage restrictions.
Our guide to organising your carry-on has more suggestions for keeping important belongings within reach.
Leave Room for the Journey Home
Decide where purchases will go before departure. Leave some space and weight available, buy fewer bulky souvenirs or budget for appropriate checked baggage on the relevant flights.
A shopping bag can become another cabin piece, so check the airline’s rules before assuming it travels separately. Repeat the size and weight check before flying home, particularly if your return allowance differs.
Before leaving, confirm that:
- Every flight’s baggage allowance matches your packed arrangement.
- Any required baggage upgrades appear on the correct bookings.
- The closed bag meets each applicable size and weight limit.
- Documents, medication, power banks and spare batteries are easy to remove.
- You can comfortably manage the luggage between airports and accommodation.
- You have a realistic plan for anything bought during the trip.
Save the baggage details with your travel documents and recheck them before departure. Adjusting a packing list at home takes a few minutes. Doing the same thing beside a boarding queue is a much less enjoyable way to begin the next part of Europe.
