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ALDI’S WINNING STREAK IS BACK AS WHICH? CROWNS IT CHEAPEST SUPERMARKET FOR SEPTEMBER

3 October, 2025

• New research from the consumer champion confirms Aldi as the cheapest destination for daily supermarket essentials
• Shoppers can save up to £44.42 weekly by switching from Waitrose to Aldi

Consumer champion Which? has once again named Aldi the UK’s cheapest supermarket for a basket of 71 essential items this September, marking its eighth win this year and its 23^rd win in the last two years.

The total price for a comparable basket at Aldi was found to be £17.47 less than at Morrisons. Similarly, the same basket of goods at Sainsbury’s was £19.93 more expensive, and Tesco’s total came in at £15.89 higher. Notably, even when shoppers utilised loyalty schemes such as Nectar or Clubcard, Aldi consistently remained the cheapest option.

Further analysis highlights even more substantial long-term savings. By opting for Aldi instead of Waitrose, savvy shoppers could have saved nearly £2,201[1] over the past year, highlighting the substantial financial advantage offered by the budget retailer.

The full September results are detailed below:

Julie Ashfield, Chief Commercial Officer at Aldi UK, said: “The latest Which? report proves that Aldi is committed to keeping groceries high-quality and low-cost – because that’s what people really need. We’re proud to retain our title, helping shoppers save for life’s other essentials.”

-ENDS-

[1] 12 months of Aldi prices: £1,697.57, 12 months of Waitrose prices: £2,247.78, difference = £550.21×4= £2,200.84