Prawn Mayo Sandwich Price at Costa Coffee (2026)
A Prawn Mayo Sandwich costs £4.7 at Costa Coffee in United Kingdom (updated September 2026).
Costa Coffee's Prawn Mayo Sandwich is priced at £4.70 in the United Kingdom right now (September 2026). That's about 11% below the average Costa Coffee Main Meal item — the 4th-cheapest of 16 we track. It has 280 calories and 19g of protein. It's available at around 40 Costa Coffee locations across the United Kingdom. Prices are sourced from delivery platforms and refreshed regularly. Check the full Costa Coffee menu or compare Main Meal prices on MenuPriceToday.
How this compares in Main Meals
16 items tracked| This item | £4.70 |
| Main Meals median | £4.85 |
| Cheapest — Free Range Egg Mayo Sandwich | £3.69 |
| Most expensive — Nacho Chilli Cheese & Chicken Toastie | £6.45 |
| vs Main Meals median | −3% |
Nutrition
14%
Daily Value
% DV = % of daily value based on a 2,000 kcal diet. Nutrition data from Costa Coffee's official information. For informational purposes only.
Compare Costa Coffee prices across 20+ countries — Fast-Food Price Index →