Cheapest Supermarket UK 2026: Aldi vs Lidl vs Tesco vs Asda
Which UK supermarket is genuinely the cheapest in 2026? We compare a basket of everyday staples across the big chains - and show how to always shop the cheapest using the best budget meal planning app in the UK.
Key Takeaways
- Aldi and Lidl are the cheapest UK supermarkets in 2026.
- The cheapest store varies by item - loyalty prices can flip the result.
- The free MUNCH app compares live prices for your exact shopping list.
UK Supermarket Price Comparison (Basket of Staples)
Based on a representative basket of everyday staples - bread, milk, eggs, pasta, rice, chicken, and frozen veg - here's roughly how the major UK supermarkets stack up in 2026. Exact prices change weekly, which is why comparing your specific list matters.
| Supermarket | Basket Cost | Notes |
|---|---|---|
| Aldi | £24 | Cheapest staples, limited range |
| Lidl | £24 | Neck-and-neck with Aldi |
| Asda | £28 | Cheapest of the big four |
| Tesco | £30 | Great with Clubcard Prices |
| Sainsbury's | £31 | Nectar Prices help close the gap |
See it in action with our £25 Aldi meal plan and £30 Tesco meal plan.
Why "Cheapest" Depends on Your Shopping List
No single supermarket is cheapest for everything. Aldi might win on fresh veg while Tesco Clubcard wins on your favourite cereal. The only reliable way to save is to price your actual list, not a generic basket.
That's where the MUNCH app comes in: plan your meals, build a shopping list, and it shows the cheapest place to buy it - free. Pair it with our weekly grocery budget guide to set a realistic target.
Frequently Asked Questions
What is the cheapest supermarket in the UK in 2026?
Aldi and Lidl are consistently the cheapest UK supermarkets in 2026, followed by Asda, then Tesco and Sainsbury's with loyalty prices. The cheapest option varies by item, so comparing prices for your list matters.
Is Aldi or Lidl cheaper?
Aldi and Lidl are extremely close and regularly swap places at the top of cheapest-supermarket surveys. Differences usually come down to individual items and weekly offers.