Aldi named UK's cheapest supermarket in March 2025 prices - with one rival hot on its heel

Which? consumer experts have revealed that Aldi is once again the cheapest supermarket for shoppers compared to other major competitors. Each month, Which? aims to identify the best value store for shoppers by comparing each retailer's prices. In its March 2025 review, a shopping list of 79 items at Aldi cost an average of £133.

73 - this was 67p cheaper than rival Lidl, including its Lidl Plus loyalty app. The same shopping list cost £134.40 with Lidl Plus, or £134.



43 without. Tesco was next cheapest but only for shoppers with a Clubcard, where a shop came to £146.79 on average, or £149.

83 without a Clubcard, reports the Mirror . The average bill at Asda came to £147.09, so more expensive compared to if you have a Tesco Clubcard, but cheaper than shoppers without a Tesco Clubcard.

Waitrose was the most expensive supermarket for the list of 79 items in March 2025, with the typical bill coming to £176.41 - a difference of £42.68 compared to Aldi.

The list of 79 items included both branded and own-brand items, such as Birds Eye Peas, Hovis bread, milk and butter. Meanwhile, Asda held on to the top spot for a bigger list of 203 grocery items. Asda came out cheapest at £498, beating Tesco with a Clubcard, where it cost £503.

03. Waitrose was also the most expensive on average for the larger shop, with the bigger list costing £573.15 - a difference of £75.

15 compared to Asda. Aldi has triumphed as the UK's most wallet-friendly supermarket, outperforming rivals with the lowest price for a basket of 79 daily essentials at just £133.73.

Hot on Aldi's heels is Lidl, almost clinching the top spot with their own thrifty offering for savvy shoppers totalling £134.40 when utilising the Lidl Plus loyalty scheme benefits. When the shopping list expands to a colossal 203 items, Asda emerges as the bargain behemoth, demanding a modest £498 from its customers, while Tesco stands as a fierce competitor, edging close with a tally of £503.

03 for those wielding its loyalty card. Which?'s Retail Editor Reena Sewraz remarked: "Aldi has once again been crowned as the UK's cheapest supermarket in our monthly price analysis, however, Lidl has narrowed the gap with its rival. It was also a strong month for Asda, as it continues to be the cheapest supermarket for a bigger list of groceries.

" Reena adds an essential tip for budget-conscious consumers: "Shoppers are still feeling the effects of food inflation and with prices forecast to rise again, people are likely looking to cut costs where they can. Our analysis shows that by switching supermarkets, shoppers could pay 24% less, highlighting the advantages of shopping around where possible." Cheapest supermarket March 2025 (79 items) Aldi - £133.

73 Lidl (with Lidl Plus) - £134.40 Lidl (without Lidl Plus) - £134.43 Tesco (with Clubcard) - £146.

79 Asda - £147.09 Tesco (without Clubcard) - £149.83 Sainsbury’s (with Nectar) - £150.

46 Morrisons (with More) - £155.47 Morrisons (without More) - £156.86 Sainsbury’s (without Nectar) - £159.

24 Ocado - £167.20 Waitrose - £176.41 Cheapest supermarket March 2025 (203 items) Asda - £498 Tesco (inc loyalty discount) - £503.

03 Sainsbury’s (inc loyalty discount) - £515.79 Morrisons (inc loyalty discount) - £522.27 Morrisons - £534.

80 Tesco - £540.63 Ocado - £553.46 Sainsbury’s - £559.

66 Waitrose - £573.15.