For an airport meal, choose by the exact drink rather than its flavour alone: zero-sugar cola and lemon-lime options suit a sugar-reduction priority, but some contain caffeine and sweeteners. If caffeine matters more, Coca-Cola GB identifies Fanta Orange as caffeine free, while Pepsi UK identifies Pepsi Max No Caffeine as a zero-sugar cola without caffeine. Before packing a drink, check your departure airport’s liquid rules; GOV.UK says containers over 100ml cannot pass security at most UK airports, while Heathrow permits up to 2 litres at its terminals.
If you want a fizzy drink with food while reducing sugar, compare the exact variants. Coca-Cola GB and Pepsi UK list 0g sugars per 100ml for Coca-Cola Zero Sugar and Pepsi Max; their standard Sprite and Pepsi listings give 4.4g and 4.5g per 100ml respectively.
A zero-sugar label does not answer the caffeine question. Pepsi UK lists caffeine in Pepsi Max but identifies Pepsi Max No Caffeine separately; Coca-Cola GB describes Fanta Orange as caffeine free.
Check the rule at each airport where you will pass through security. GOV.UK says containers larger than 100ml cannot pass security at most UK airports, even when partly full; Heathrow states an allowance of up to 2 litres at Terminals 2, 3, 4 and 5.
Decide whether sugar, caffeine or bringing a drink through security limits your choice, then check the exact can or bottle.
| Priority | What to check | Your needs |
|---|---|---|
| Sugar | Compare sugars per 100ml on the exact variant. Pepsi UK lists 0g for Pepsi Max and 4.5g for standard Pepsi; Coca-Cola GB lists 0g for Sprite Zero and 4.4g for standard Sprite. | I want a sparkling drink with my meal, but the sugar content of the standard and zero-sugar versions would change my choice. |
| Caffeine | Read the ingredient list or look for an explicit no-caffeine variant. Pepsi UK lists caffeine in Pepsi Max and identifies Pepsi Max No Caffeine separately; Coca-Cola GB describes Fanta Orange as caffeine free. | If I am avoiding caffeine, a zero-sugar description alone is not enough to choose my drink. |
| Ingredients | Check sweeteners and any phenylalanine statement on the exact label. Coca-Cola GB lists sweeteners and a phenylalanine statement for Coca-Cola Zero Sugar; Pepsi UK lists aspartame among Pepsi Max’s sweeteners. | I need to know what is in the particular flavour and version I am considering, not just whether it contains sugar. |
| Security | Check the departure airport’s current liquid allowance and any airport where you will pass through security again. GOV.UK gives a 100ml container limit at most UK airports; Heathrow states up to 2 litres at its terminals. | Will I take a drink from home through security, or choose one once I am airside? |
| Drink type | Do not treat a sugar-free fizzy drink as equivalent to water. Norfolk and Suffolk NHS notes that many fizzy drinks, including sugar-free versions, are acidic. | If I expect to have several drinks during the journey, I want to consider a non-fizzy option as well. |
GOV.UK says containers over 100ml cannot pass security at most UK airports, even if partly full. Heathrow instead states an allowance of up to 2 litres at its terminals.
Check your departure airport and any return or transfer airport before packing a can or bottle.
A container above the applicable limit may have to be surrendered at security.
Pepsi UK lists caffeine in Pepsi Max, and Coca-Cola GB lists it in Coca-Cola Zero Sugar. Their sugar content does not establish caffeine suitability.
If you want to avoid caffeine, look for an explicit caffeine-free product statement and check the exact label.
Coca-Cola GB lists 4.5g sugars per 100ml for Fanta Orange; Pepsi UK gives the same figure for standard Pepsi. A fruit flavour does not tell you the sugar content.
Compare the per-100ml figures for the particular flavours and variants you are considering.
A pack of 330ml cans gives you more drinks than one meal requires, and each can exceeds the limit GOV.UK describes for most UK airport security checkpoints.
Consider where you will keep the remaining cans, and check your airport’s rules before planning to carry one through security.
Unused cans also take up luggage space and add carrying weight.
Recipes differ within a brand, so use these examples to narrow down which exact label to inspect.
A cola reference if you want to compare a specifically named zero-sugar variant.
The named cola variants allow separate checks for sugar and caffeine.
A lemon-lime alternative to cola, with standard and zero-sugar variants to compare.
An orange-flavoured option when caffeine content matters alongside flavour.
A distinct flavour choice with standard and zero-sugar variants.
A grocery-range reference for planning purchases before travel, not an indication of airport-terminal stock.
These packs offer cola, lemon-lime and orange-infused sparkling choices to consider before an airport journey. Check the individual drink label and your airport’s security rules before deciding whether to take a can with you.
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Consider this cola variant if avoiding caffeine matters. Pepsi UK lists 0g sugars per 100ml for Pepsi Max No Caffeine; check the can’s ingredients if sweeteners matter to you. Each 330ml can exceeds the container limit at most UK airport security checkpoints, according to GOV.UK.
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A lemon-lime choice if you prefer it to cola. Check the exact can for sugar, caffeine and sweetener information if those affect your choice. GOV.UK says a 330ml container cannot pass security at most UK airports.
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For a cola choice where sugar content is the priority, Pepsi UK lists 0g sugars per 100ml for Pepsi Max. Its ingredients include caffeine and sweeteners, so choose a specifically caffeine-free variant if needed. Check airport security rules before carrying a 330ml can.
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This 12-can cola pack may suit a smaller planned supply than the 24-can cola packs shown here. Coca-Cola GB lists 0g sugars per 100ml for Coca-Cola Zero Sugar, whose ingredients include caffeine and sweeteners. A 330ml can exceeds the container limit at most UK airport security checkpoints.
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An orange-infused sparkling-water alternative to the cola and lemon-lime drinks above. Check the exact can’s sugar, ingredient and caffeine information if those affect your choice. GOV.UK says a 330ml container cannot pass security at most UK airports.
Not at most UK airports: GOV.UK says liquids in containers larger than 100ml cannot pass security, even if the container is partly full. Check the rule at your departure airport and anywhere you will pass through security again.
Yes. Heathrow Airport states that liquids in containers of up to 2 litres can pass security at Terminals 2, 3, 4 and 5. Do not apply that allowance to another airport without checking its own rules.
No. Coca-Cola GB lists caffeine in Coca-Cola Zero Sugar, and Pepsi UK lists it in Pepsi Max. Pepsi Max No Caffeine is a separately named option; check the precise variant on the can or bottle.
Coca-Cola GB describes Fanta Orange as caffeine free, although its listing gives 4.5g sugars per 100ml. For a zero-sugar cola, Pepsi UK identifies Pepsi Max No Caffeine; check that exact name rather than assuming every Pepsi Max variant is caffeine free.
No. Norfolk and Suffolk NHS notes that many fizzy drinks, including sugar-free versions, are acidic and can erode enamel. If that distinction matters to your drink choice, consider water as a separate option rather than judging a drink by sugar content alone.