For one airport snack, compare the calories in the whole bag you plan to eat: Walkers declares 96 kcal for a 22g Oven Baked Sea Salt pack, while Seabrook declares 126 kcal for a 25g Lea & Perrins pack. These are different flavours and portion sizes, not a like-for-like comparison of recipes. If you prefer conventional potato crisps, a small individual bag gives you a defined portion; check its salt and allergen information as well as its calories.
If you expect to eat one whole bag during a flight or airport wait, an individual portion makes the total easier to compare. Walkers declares 96 kcal for its 22g Oven Baked Sea Salt pack; Tyrrells declares 208 kcal for its larger, 40g Lightly Sea Salted pack.
A smaller conventional crisp bag may suit you better than a baked-style option or a sharing bag. Seabrook declares 126 kcal for a 25g Lea & Perrins bag and 164 kcal for a 31.8g Sea Salted bag, so check the flavour and pack weight rather than assuming they match.
Calories are only one part of the choice if you also need to check ingredients or allergens. Seabrook says its crisp and snack range is gluten-free and Coeliac UK accredited; confirm that the claim and allergen statement apply to the exact pack you intend to take.
Start with the amount you expect to eat, then compare nutrition and dietary information for that exact flavour and pack.
| Priority | What to check | Your needs |
|---|---|---|
| Calories per bag | Read the kcal figure for the whole bag, or check the serving size if the label gives a per-portion figure. Use per-100g figures when comparing products on the same weight basis. | I expect to finish one bag while travelling, so the total for that bag matters more to my choice than a per-100g figure alone. |
| Pack size | Check the weight of each inner bag, not just the multipack or sharing-bag weight. Decide how much you intend to take before comparing totals. | A sealed individual bag gives me a defined portion; if I take a sharing bag, I need to decide how much I will eat. |
| Salt and other nutrition | Compare salt and fat on the same per-pack or per-100g basis. The NHS notes that nutrition labels give energy and nutrients per 100g and sometimes per portion. | Calories are not my only consideration, so I want to read the nutrition panel rather than judge a pack by words such as ‘baked’ or ‘lightly salted’. |
| Ingredients and allergens | Read the ingredient and allergen statement for the exact flavour. Check any vegetarian, vegan or gluten-free declaration on that item rather than another product in the range. | I need the packet I carry to match my dietary requirements, even if a brand describes its wider range in a particular way. |
| Hand-luggage access | Keep food accessible for screening. GOV.UK says food items can obstruct X-ray images and may require a manual bag check; check the airports on your journey for their procedures. | I want to take a crisp packet in hand luggage without assuming that food will pass through security without an additional check. |
A 22g bag and a 40g bag are different portions. Walkers declares 96 kcal for its 22g Oven Baked Sea Salt pack, while Tyrrells declares 208 kcal for its 40g Lightly Sea Salted pack; those totals do not isolate the effect of the recipes.
If you plan to eat the whole bag, compare kcal per bag first. Use the per-100g figures for a comparison at equal weights.
A larger bag does not define how much one person will eat. The Kettle Chips Lightly Salted listing identifies a 130g bag, compared with the individual 22g packs in the Walkers Oven Baked multipack.
Choose an individual bag if you want a defined portion, or decide how much of a sharing bag to take before travelling. Keep its packaging available if you need to refer to the ingredients.
‘Baked’, ‘lightly salted’ and ‘gluten-free’ answer different questions; none gives the full calorie, salt and allergen information for every flavour.
Read the nutrition panel and the exact product’s ingredient and allergen statement before choosing.
GOV.UK says food items can obstruct X-ray images in hand luggage, and security staff may need to check a bag manually.
Keep your crisps accessible and check the procedures at your departure and transit airports. Liquid or semi-liquid accompaniments need a separate check against the applicable liquids rules.
Compare specific flavours and bag sizes: a brand name alone does not establish the calories or dietary suitability of the pack you will eat.
The Oven Baked Sea Salt 22g bag is a defined individual portion.
Individual bags offer a conventional potato-crisp option, with figures that vary by flavour and size.
Lightly Sea Salted comes in a 40g single bag, a larger portion than the 22g and 25g examples above.
The Lightly Salted product identified in the Joybuy listing is a 130g bag.
The Salted product has a manufacturer nutrition declaration that can be used to assess a chosen portion.
REAL describes its range as vegetarian and gluten-free.
These PopChips and Walkers multipacks contain individual 17g or 22g bags that you could select for an airport journey. Check the nutrition and allergen information for the particular flavour and inner bag before choosing.
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The five individual 17g bags offer a defined portion to take on a journey. Check the pack’s calorie figure and allergen statement for this flavour before selecting one.
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This multipack also contains five individual 17g bags, so you can take one rather than the whole multipack. Read the Barbecue flavour’s own nutrition and allergen information; do not assume it matches Sour Cream & Onion.
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The six individual 22g bags provide a defined portion for a journey. Walkers declares 96 kcal for its Oven Baked Sea Salt 22g bag; check each inner pack in this variety selection for its own calories and allergens.
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This pack contains six individual 22g bags, allowing you to choose one for the journey. Check the Cheese & Onion flavour’s calorie figure and allergen statement rather than applying the declared Sea Salt figures to it.
A solid packet of crisps is different from the liquid and semi-liquid foods covered by the liquids examples in GOV.UK’s hand-luggage guidance. GOV.UK also says food can obstruct X-ray images, so your bag may need a manual check. Check the procedures at your departure and transit airports before travelling.
Compare the calories in the whole bag you expect to eat, alongside its weight. Walkers declares 96 kcal for a 22g Oven Baked Sea Salt bag, Seabrook 126 kcal for a 25g Lea & Perrins bag, and Tyrrells 208 kcal for a 40g Lightly Sea Salted bag. The portions and products differ, so these figures do not establish which recipe has fewer calories at an equal weight.
The name alone does not establish either comparison. Tyrrells declares 208 kcal and 0.26g salt per 40g Lightly Sea Salted bag; Walkers declares 96 kcal and 0.19g salt per 22g Oven Baked Sea Salt bag. Check the pack sizes and compare per-100g figures if you want to assess the products at equal weights.
Read the ingredients and allergen statement on the exact flavour and pack before buying or eating it. Seabrook says its crisp and snack range is gluten-free and Coeliac UK accredited, but a range-level statement does not replace checking the item you choose.