Mountain Dew Sweet Lightning Price at KFC (2026)
A Mountain Dew Sweet Lightning costs £3.33 at KFC in United Kingdom (updated August 2026).
Based on the latest tracked prices, the Mountain Dew Sweet Lightning from KFC costs £3.33 in the United Kingdom (August 2026). That's about 9% above the average KFC drink item — the 7th-most-expensive of 14 we track. It's available at around 624 KFC locations across the United Kingdom. Prices are sourced from delivery platforms and refreshed regularly. See how it stacks up across other chains, and track its price for free, on MenuPriceToday.
How this compares in Drinks
14 items tracked| This item | £3.33 |
| Drinks median | £3.33 |
| Cheapest — Pepsi MAX Can | £1.99 |
| Most expensive — Sweet Tea | £4.75 |
| vs Drinks median | 0% |
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