You've booked the flights, sorted the hotel and written the out-of-office email. Then you spend the morning before heading to the airport sitting on your suitcase trying to force the zip shut. Sounds familiar? Listen: most packing stress comes down to a handful of avoidable mistakes. Whether you're heading off on a city break or a long-haul adventure, this article covers the most common airport packing pitfalls and how to sidestep them.
Ahead you will find tips on what not to pack in your carry-on, how to pack a suitcase so everything fits and which items will get pulled out of your bag at security. Read through first, then shop when you know exactly what you need.
Mistake 1: Not Weighing Your Bag Before You Leave Home
This is the one that catches people out every single time. You pack carefully, you're sure it'll be fine, and then you're at the check-in desk pulling out your trainers in front of a queue of strangers. Airline baggage allowances are strict. Most budget carriers charge per kilogram over the limit, and those fees add up fast. A short-haul flight can suddenly cost you an extra £50 before you've even boarded.
The fix is simple. Weigh your bag at home before you leave – or take a scale with you! The Lugg Digital Portable Luggage Scale reads up to 50kg and fits in your hand luggage. Hook it under the handle, lift and you've got your answer in seconds. It takes the guesswork out completely and costs a fraction of a single overweight baggage fee.
If you're regularly pushing the limits, it's also worth looking at the underseat bag collection for lighter travel options that make weight far less of an issue. Most airlines have a maximum allowance of 10kg for this carry-on bag, and that’s a lot for the size you get.
Mistake 2: Ignoring Carry-On Size Rules
Airline size policies for carry-on bags are not loose guidelines. They're rules, and they vary between carriers. What flies (literally) on one airline ends up with an extra fee on another.
Ryanair and EasyJet both have specific dimensions for what counts as a free underseat bag versus a priority cabin bag. If your bag is even a centimetre over, you could be asked to pay for checking it at the gate. Check our full carry-on size rules by airline before you pack.
The Lugg Soft Cabin Bag (45x36x20cm) is approved for both EasyJet underseat and Ryanair priority boarding, which means no nasty surprises at the gate. Soft-sided bags also have a little more give than hard shells, which helps when the overhead locker is already half full. If you would rather travel with a hard shell, the cabin bags collection has options sized for the most common airline restrictions.
Mistake 3: Packing Restricted Items Without Realising It
Some items aren't allowed on planes, and the list is longer than most people expect. The items below are commonly flagged by security. Getting them confiscated slows down the queue and will delay your vacation.
Items NOT allowed in carry-on bags:
- Liquids over 100ml per container (must be in a clear resealable bag, max 1 litre total)
Note: Heathrow, Birmingham and Edinburgh have now lifted the 100ml limit following the installation of CT scanners. Rules still vary by airport so always check your departure airport's current policy before you travel.
- Sharp objects including scissors over 6cm, craft knives and razors
- Aerosols including deodorant, hairspray and dry shampoo over 100ml
- Gel-filled items like sports braces, certain shoe insoles and some ice packs
Items NOT allowed in checked baggage:
- Lithium batteries and power banks
- E-cigarettes and vapes (must go in hand luggage)
- Flammable liquids including camping fuel and lighter refills
- Certain sporting equipment without prior airline approval
If you're unsure, check the UK Civil Aviation Authority guidelines or your specific airline's website before you pack. It takes five minutes and saves a lot of hassle and anxiety at the security tray.
It's also worth making sure your bag is organised enough to get through security quickly. The Lugg Jetset 40cm Suitcase has a well-structured interior that keeps everything in its place, including a couple of pockets to store valuables. The full hard-shell suitcase range is worth a look if you want robust protection for your belongings.
Mistake 4: Packing Without a System and Running Out of Space
Packing without organisation isn't just annoying on arrival when you're rooting through your bag for your toothbrush. It also means you pack less efficiently, crease your clothes and end up overpacking because you can't see what's already in there.
Here are ways to pack a suitcase to maximise space:
- Roll clothes rather than folding them flat. Rolling reduces creases and takes up less room
- Use packing cubes to group clothing by type or by day. They compress your clothes and make unpacking a dream.
- Put heavier items like shoes and toiletry bags along the wheel base of the suitcase so weight sits low when upright and you won’t have to pick your suitcase up every five seconds.
- Fill shoes with socks, chargers or small accessories to use dead space.
- Pack your most-needed items (phone charger, medication, etc) in your carry-on in case checked luggage is delayed.
Packing cubes transform how much you can fit. They fit neatly inside our luggage range and make the whole system click into place. For a check-in suitcase that gives you real space to work with, the Air Glide 28" Suitcase is a lightweight hard-shell option in the Airglide collection with a spacious main compartment that rewards good packing habits. More outfits, more options!
Not sure what to pack in the first place? Our holiday packing list covers every trip type.
Mistake 5: Packing Too Much for Your Carry-On
The temptation to cram everything important into your hand luggage is real, especially if you're not checking bags. But an overstuffed carry-on causes its own set of problems. The key is being selective about what earns its place.
At minimum, your cabin bag should hold your travel documents and valuables - passport, boarding pass, insurance details and any cards or cash you'll need on arrival - alongside your electronics and chargers, and any prescription or over-the-counter medication you might need during the flight or on arrival. A small clear toiletry bag with lip balm, hand cream and any skincare you want mid-flight is worth squeezing in too and never underestimate the value of a good book for the journey.
A well-packed carry-on leaves room for the things that’ll matter on a flight. If you're going with a carry-on only, the Lugg Soft Cabin Bag is sized to the limit so you're using every centimetre you're allowed. If you want to compare sizes before you decide, the hand luggage collection has everything in one place.
Mistake 6: Forgetting Things That Matter on a Long Flight
Packing tips for flights usually focus on what to leave out. But some things are worth actively planning to bring. Long-haul passengers almost universally report the same regrets: forgetting a neck pillow, not having a layer to hand when the cabin gets cold, no headphones, no snacks.
Things to bring on a long flight:
- A proper neck pillow (not the inflatable kind)
- Noise-cancelling or in-ear headphones
- A good eye mask
- Snacks that travel well like nuts, dried fruit and cereal bars
- An empty water bottle to fill after security
- Compression socks for flights over four hours
- A charger
- A soft layer like a large scarf or hoodie
The Lugg memory foam travel neck pillow holds your head in place properly. Memory foam shapes to your neck so there's no sliding or jolting awake. It's the difference between arriving rested and arriving with a crick in your neck that lasts three days (or the whole holiday). Find it alongside other travel essentials in the accessories collection.
Mistake 7: Leaving Packing to the Night Before
This affects everyone - even experienced travellers. Last-minute packing leads to forgotten essentials, overpacking because you're not thinking clearly and the very specific stressful moment of trying to remember where you put your travel adaptor at 11pm.
A simple approach: start a packing list at least a week before you travel. Add to it as things come to mind throughout the week. Then pack two days before, check the list again the following day and you're done. No panic, no sitting on the suitcase, no rushing back to get what you forgot.
It also gives you time to check that your hand luggage is the right size for your airline, that your toiletries are compliant and that your Lugg Digital Luggage Scale is ready to use. The details that trip you up are always the ones you left too late to check.
Pack Smarter, Travel Better
Whether it's your first time travelling light or you're a seasoned packer looking to sharpen your system, the mistakes above are the ones worth avoiding. The right bag helps too. Browse the full suitcase range or start with cabin bags if you're going carry-on only. And send us a postcard from wherever you are!
FAQs About Airport Packing and Hand Luggage Rules
What can I not bring in my carry-on luggage?
Liquids over 100ml, sharp items over 6cm, aerosols over 100ml, most sporting equipment and gel-filled products. Electronics like laptops can travel in carry-on but should be easily accessible for security checks. Power banks must stay in hand luggage and cannot go in the hold.
What can I not bring in my checked baggage?
Quite a few things. Lithium batteries, power banks, e-cigarettes, vapes, flammable liquids and compressed gases. Put these in your carry-on or leave them at home. Check with your specific airline for sports equipment, liquids over 1 litre and any unusual items.
How to best pack my suitcase?
Roll your clothes, use packing cubes to group and compress items, fill shoes with small accessories and pack heavy items along the base of the suitcase. Stick to a colour palette so everything mixes and matches, which cuts down the number of outfits you need to pack.
Are packing cubes worth it?
Yes, particularly if you're packing for more than a weekend. They compress clothing, keep categories separate and make unpacking in a hotel far quicker. They're especially useful in larger suitcases where things tend to shift around in transit.
What should I always pack in my carry-on?
Medication, valuables, a phone charger, a change of clothes and any electronics. Oh, and your passport! If your checked bag is delayed, these are the things you'll be glad you kept close to you. A neck pillow and a few snacks also make a long wait or flight significantly more bearable.
How do I avoid baggage fees?
Weigh your bag at home with a luggage scale before you leave or bring a portable one with you. Know your airline's allowance and aim to pack under it, not right at the limit. Wearing your heaviest items like boots and a thick jacket to the airport can free up a kilogram or two without too much effort.
What's the best carry-on bag size for Ryanair and EasyJet?
For Ryanair, the free underseat bag is limited to 40x20x25cm. With priority boarding, you can take a cabin bag up to 55x40x20cm. For EasyJet, the underseat bag is 45x36x20cm. Our Jetset collection has a few options suiting these needs. One last tip: always check the airline's website before you travel as policies do change.
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