First up, we have the German discount duo: Aldi and Lidl. They’ve been duking it out for years, like two friendly ninjas with excellent cheese aisles. Then there’s Iceland, the frozen food fortress, and sometimes Asda or Tesco when they have a mega-sale. But let’s be real: the official title of “Cheapest Supermarket” has a clear winner.
The Winner: Lidl (or Aldi, but usually Lidl)
According to Which? and The Grocer (the people who literally obsess over lettuce prices), Lidl keeps edging out its rival. In 2026 and into 2026, time and again, Lidl’s basket of 44 common items came out cheaper than Aldi’s. We’re talking a difference of about £1.50 to £3.00. That’s not life-changing, but it’s enough to buy a cheeky pack of biscuits.
But let’s be fair: Aldi is so close that calling it a loss is like saying a sprinter lost by a hair. Honestly, if you shop at either, you’re already winning the savings game. The real losers are the blokes paying £4 for a jar of artichokes at Waitrose.
