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How big should suitcase be for 20kg allowance?

14 replies

MojoJojo71 · 17/05/2025 17:11

I normally only go on holiday for a week and travel with hand luggage but DD and I are going away for 2 weeks this year so I’ve paid to take one 20kg suitcase between us.

now I need to buy a suitcase but not sure which size I need. This is one I was thinking of buying, do you think I should get the medium or large?

www.dunelm.com/product/elements-two-tone-hard-shell-suitcase-1000256864?branchCode=0137&defaultSkuId=30927900&gad_campaignid=1694785643&gad_source=1&gbraid=0AAAAADGqyX1oFT95JSCJ__WfSctEdEGTY&gclid=CjwKCAjw56DBBhAkEiwAaFsG-gp3OggyH_PpdbnaHPEUKLDfKR5Pl706wCXJG5eiXu7b7Pn7XsOGoBoCqvYQAvD_BwE&gclsrc=aw.ds&utm_campaign=Storage_Travel_%5BGOO-LIA+PSB-STORAGE-LUGGAGE%5D&utm_medium=cpc&utm_source=google&size=Medium+Suitcase&colour=Fuschia

OP posts:
GoldLash · 17/05/2025 17:13

The airline will give you the exact dimensions on their website

ErrolTheDragon · 17/05/2025 17:24

most brands it’ll be the medium size IME.

JDM625 · 17/05/2025 17:35

I agree with checking the airlines rules in terms of size, but I bought some recently from argos. I have the smaller version of this- which is incredibly light!
Buy it Luggage World's Lightest Large 4 Wheel Soft Suitcase | Suitcases | Argos

Very handy if you want to pack light going out and add souvenirs on the return trip.

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Overthemoun · 17/05/2025 17:39

We have Tripp medium cases for 20kg. it’d have to be full of smellies and shoes to go over

www.tripp.co.uk/tripp-ultra-lite-black-medium-suitcase/p3062

Bjorkdidit · 17/05/2025 18:38

There are no size limits but a large suitcase may exceed 20 kg if its already heavy and/or you fill it with shoes, books, toiletries etc.

What cabin luggage do you have? Just the small bag, or a second larger bag?

Rocknrollstar · 17/05/2025 19:32

If you go to Matalan you need the middle one .

Calliopespa · 17/05/2025 19:55

This is a bit like asking “ How long is a piece of string” as it depends entirely in what you put in it.

If summer clothing and not many shoes or cosmetics, I have taken an 88 litre case as a 20kg allowance before.

Jojo19834 · 17/05/2025 19:58

Agree above on Tripp medium sized case for 20kg, I would say that comes in 15-17kg when filled, expect larger you would be heavier and having to worry about overpacking

Pineapplewaves · 17/05/2025 20:07

A medium suitcase will weigh around 2-3kg giving you 17 kg left for your stuff. Are you sure 1 x 20kg is enough for the two of you? When we went on holiday last year for 14 nights (1 adult and 2 x DC) we had 3 x 23kg allowance. We took 1 x 22kg, 1 x 20 kg and 1 x 16kg.

If you are flying with Ryanair there is a maximum suitcase size you are allowed. Other airlines don’t mind as long as you don’t go overweight.

notimagain · 17/05/2025 20:13

If you are flying with Ryanair there is a maximum suitcase size you are allowed. Other airlines don’t mind as long as you don’t go overweight

For info quite a few airlines, including some of the legacy operators, do specify a maximum size, though they may allow bags not too far over the limited to be checked in as outsized.

MojoJojo71 · 17/05/2025 22:16

Thanks everyone. I think I’ll probably get the medium one. We don’t take lots of shoes and toiletries and generally pack lightly. We always manage a week with hand luggage only so we’ll definitely only need one case between us for a fortnight

OP posts:
TokenGinger · 17/05/2025 23:31

I can never fit more than 15kg in my medium IT suitcase. I use my large IT case for a 20kg allowance.

lljkk · 19/05/2025 10:31

close to 65 x 40 x 25 cm will be safe.

rickyrickygrimes · 19/05/2025 19:48

lljkk · 19/05/2025 10:31

close to 65 x 40 x 25 cm will be safe.

I was looking on Ryanair tonight and the 20kg suitcase max dimensions were 120 x 120 x 80 cm, which seems absolutely massive 🤷‍♀️

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