Stores (3) 
Promotion 
£2.00
£1.79
Diet coke offers
This week there are 10 Diet coke offers valid. Use the filters to find the offers from your favourite store or product. You can save the search to be notified when Diet coke is on offer again at a store near you.
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Diet Coke Can
£10.79
Buy 2 Get 1 Free
Diet coke 2l
£2.15
4 for £34.00
Diet coke 330ml
£12.00
Buy 2 Get 1 Free
Diet Coke 3L Bottle
£3.25
Buy 2 Get 1 Free
Diet Coke No Caffeine 2L
£2.15
Now Only £6.99
Diet Coke, Coca Cola Zero
£6.99
4 for £34.00
Diet Coke No Caffeine 24 x 330ml
£12.00
10 for £10.00
Diet Coke 1.5L (1.25L + 20% Extra Free)
£2.00
Any 2 for £2.75
Schweppes Lemonade, Coca Cola Zero, Cherry, Diet Coke
£2.75
2 for £7.00
Diet Coke 10 x 330ml (8 x 330ml + 2 x 330ml Extra Free)
£4.25
Stores with Diet coke in their assortment
Top 10 best Diet coke offers
Looking for the best Diet coke offers? We have collected the top 10 offers for you! See here where to get Diet coke at the best price and take advantage of sharp discounts and promotions right away.
| # | Offer | Name | Store | Regular price | Offer price | Promotion | Start date | End date | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | | Diet Coke Can | Makro | £10.79 | 06 January 2026 | 03 March 2026 | View offer | ||
| 2 | | Diet coke 2l | Iceland | £2.15 | Buy 2 Get 1 Free | 11 February 2025 | 14 January 2026 | View offer | |
| 3 | | Diet coke 330ml | Iceland | £12.00 | 4 for £34.00 | 20 January 2025 | 10 January 2026 | View offer | |
| 4 | | Diet Coke 3L Bottle | Iceland | £3.25 | Buy 2 Get 1 Free | 11 February 2025 | 09 January 2026 | View offer | |
| 5 | | Diet Coke No Caffeine 2L | Iceland | £2.15 | Buy 2 Get 1 Free | 11 February 2025 | 15 January 2026 | View offer | |
| 6 | | Diet Coke, Coca Cola Zero | Londis | £6.99 | Now Only £6.99 | 05 January 2026 | 01 February 2026 | View offer | |
| 7 | | Diet Coke No Caffeine 24 x 330ml | Iceland | £12.00 | 4 for £34.00 | 20 January 2025 | 10 January 2026 | View offer | |
| 8 | | Diet Coke 1.5L (1.25L + 20% Extra Free) | Iceland | £2.00 | 10 for £10.00 | 02 September 2025 | 13 January 2026 | View offer | |
| 9 | | Schweppes Lemonade, Coca Cola Zero, Cherry, Diet Coke | Londis | £2.75 | Any 2 for £2.75 | 05 January 2026 | 01 February 2026 | View offer | |
| 10 | | Diet Coke 10 x 330ml (8 x 330ml + 2 x 330ml Extra Free) | Iceland | £4.25 | 2 for £7.00 | 08 January 2026 | 15 January 2026 | View offer |
Diet coke price history 🕒
| Offer | Name | Store | Regular price | Offer price | Promotion | Start date | End date |
|---|---|---|---|---|---|---|---|
 | Diet Coke, 30 x 330ml | Costco | £8.79 | 08 December 2025 | 14 December 2025 | ||
 | Diet coke/coke zero | Bestway | £1.40 | 07 November 2025 | 04 December 2025 | ||
 | Diet Coke 24x330ml | Makro | £8.55 | 05 November 2025 | 02 December 2025 | ||
 | Diet coke | Bestway | £0.90 | 10 October 2025 | 06 November 2025 | ||
 | Diet Coke/Coke Zero | Lidl | £4.50 | 04 September 2025 | 10 September 2025 | ||
 | Diet Coke 150ml | Iceland | £0.75 | 5 for £2.50 | 18 August 2025 | 25 August 2025 | |
 | Diet Coke Cans 8 x 330ml | Morrisons | £4.25 | £3.50 | £0.75 Discount | 14 May 2025 | 30 August 2025 |
 | Diet coke caffeine free 10 x 330ml | Tesco | £5.30 | Any 2 for £8 Clubcard Price | 30 August 2023 | 31 August 2023 | |
 | Diet Coke 24 x 500ml | Costco | £11.99 | 29 August 2022 | 18 September 2022 |