Diet Coke Price at Chick-fil-A (2026)
A Diet Coke costs £3.09 at Chick-fil-A in United Kingdom (updated August 2026).
A Diet Coke® at Chick-fil-A costs £3.09 in the United Kingdom as of August 2026. That's about 6% below the average Chick-fil-A beverage item — the 1st-cheapest of 4 we track. Prices are sourced from delivery platforms and refreshed regularly. Check the full Chick-fil-A menu or compare beverage prices on MenuPriceToday.
How this compares in Beverages
4 items tracked| This item | £3.09 |
| Beverages median | £3.29 |
| Cheapest — Coca-Cola® | £3.09 |
| Most expensive — Chick-fil-A® Lemonade | £3.49 |
| vs Beverages median | −6% |
Compare Chick Fil A prices across 20+ countries — Fast-Food Price Index →