Published 2026-10-02
The most expensive fast food in the UK: a Burger King Whopper for £8.69 in London, 32% above the chain's median
As fast food pricing becomes more data-driven, Drive Thru Index looked for the most expensive fast food in the UK, comparing each of 6 chains only with its own national prices, on 2 October 2026.
Data as of .
Key facts
- Northampton, England: fast food costs 5% more than the UK typical priceDrive Thru Index 105, across 20 restaurants; each chain is compared only with itself.
- Burger King Whopper: £8.69 in London, England32% above Burger King's UK median of £6.59.
- Greggs Sausage Roll: £1.70 in Chepstow, Wales26% above Greggs' UK median of £1.35.
- KFC Zinger Burger: £6.99 in London, England17% above KFC's UK median of £5.99.
- Five Guys Hamburger: £10.95 in Liverpool, England11% above Five Guys' UK median of £9.85.
Fast food chains are collecting more and more data about their customers through mobile apps and loyalty programmes: accounts with their details, and what they order and when. They are also experimenting with AI and data-driven pricing. Meanwhile the same item can cost very different amounts from one restaurant to the next, and customers cannot see why. Drive Thru Index publishes every restaurant's real price, every day, so anyone can check.
Among cities with at least 10 restaurants, Northampton, England is the most expensive: its Drive Thru Index is 105, meaning its restaurants charge 5% more than their own chains' national typical prices, on average.
Next come Brighton, England (103) and London, England (103); the cheapest is Wolverhampton, England (99).
Burger King's dearest Whopper costs £8.69, at the Burger King in London, England: 32% above the chain's UK median of £6.59. Its dearest basket of 4 items is £25.96 in Northampton, England, 16% above its median of £22.46.
Greggs' dearest Sausage Roll costs £1.70, at the Greggs in Chepstow, Wales: 26% above the chain's UK median of £1.35. Its dearest basket of 5 items is £13.70 in Chepstow, Wales, 25% above its median of £10.95.
KFC's dearest Zinger Burger costs £6.99, at the KFC in London, England: 17% above the chain's UK median of £5.99. Its dearest basket of 5 items is £23.25 in London, England, 11% above its median of £20.95.
Five Guys' dearest Hamburger costs £10.95, at the Five Guys in Liverpool, England: 11% above the chain's UK median of £9.85. Its dearest basket of 3 items is £21.75 in Liverpool, England, 7% above its median of £20.25. At the airport in Tw6 2Ga, England, the Hamburger costs £11.45.
Wendy's dearest Wendy's Single costs £5.99, at the Wendy's in London, England: 9% above the chain's UK median of £5.49. Its dearest basket of 5 items is £22.65 in London, England, 6% above its median of £21.45.
Popeyes' dearest Classic Chicken Sandwich costs £6.99, at the Popeyes in London, England: 8% above the chain's UK median of £6.49. Its dearest basket of 3 items is £17.27 in London, England, 9% above its median of £15.87.
Anthony Gherghetta, an Australian software developer who built Drive Thru Index, started it after reading some of the buzz about AI being used to set fast food prices: he wanted to see whether it was true, and how big the price differences between restaurants really were. Prices bear out the contrast he noticed. In Australia, 97% of McDonald's restaurants charge within 10% of the typical Big Mac price; in the US, 53% do. The gap between the cheapest and the dearest tenth of restaurants is 10% of the typical price in Australia and 33% in the US. In the UK, 89% of Greggs locations, the biggest chain tracked there, charge within 10% of its typical Sausage Roll price.
“I kept reading that fast food chains were starting to use AI and customer data to set prices, so I wanted to see if it was true and how big the differences really were. In Australia, where I’m from, a Big Mac costs much the same wherever you buy it. In the US the price changes from one restaurant to the next. Fast food apps now know what you order, when and where, but customers can’t see how prices are set. So I built Drive Thru Index to check every restaurant, every day,” said Gherghetta.
Quotable lines
The dearest Burger King Whopper in the UK costs £8.69, in London, England.
The dearest Greggs Sausage Roll in the UK costs £1.70, in Chepstow, Wales.
The dearest KFC Zinger Burger in the UK costs £6.99, in London, England.
The dearest Five Guys Hamburger in the UK costs £10.95, in Liverpool, England.
Images
The facts behind the release
Every figure is from our prices of 2026-10-02, with the page on this site that shows it.
| Figure | Value | Where to see it |
|---|---|---|
| Northampton, England: fast food costs 5% more than the UK typical price | Drive Thru Index 105, across 20 restaurants; each chain is compared only with itself. | See the page |
| Burger King Whopper: £8.69 in London, England | 32% above Burger King's UK median of £6.59. | See the page |
| Greggs Sausage Roll: £1.70 in Chepstow, Wales | 26% above Greggs' UK median of £1.35. | See the page |
| KFC Zinger Burger: £6.99 in London, England | 17% above KFC's UK median of £5.99. | See the page |
| Five Guys Hamburger: £10.95 in Liverpool, England | 11% above Five Guys' UK median of £9.85. | See the page |
| Most expensive Burger King Whopper (restaurants) | £8.69 (+32%) | London, England |
| Most expensive order (restaurants) | £25.96 (+16%) | Northampton, England |
| Most expensive Greggs Sausage Roll (restaurants) | £1.70 (+26%) | Chepstow, Wales |
| Most expensive order (restaurants) | £13.70 (+25%) | Chepstow, Wales |
| Most expensive KFC Zinger Burger (restaurants) | £6.99 (+17%) | London, England |
| Most expensive order (restaurants) | £23.25 (+11%) | London, England |
| Most expensive Five Guys Hamburger (restaurants) | £10.95 (+11%) | Liverpool, England |
| Most expensive overall (airport) | £11.45 (+16%) | Tw6 2Ga, England |
| Most expensive order (restaurants) | £21.75 (+7%) | Liverpool, England |
| Most expensive Wendy's Wendy's Single (restaurants) | £5.99 (+9%) | London, England |
| Most expensive order (restaurants) | £22.65 (+6%) | London, England |
| Most expensive Popeyes Classic Chicken Sandwich (restaurants) | £6.99 (+8%) | London, England |
| Most expensive order (restaurants) | £17.27 (+9%) | London, England |
Methodology, about and contact
Drive Thru Index reads every restaurant's menu from each chain's own ordering app every day; these are the latest pickup prices collected on or before 2 October 2026, in pounds sterling. The Drive Thru Index of a place averages each chain's own index there, where 100 is that chain's typical price nationally, so chains are never compared with each other; cities need at least 10 restaurants. Each chain's dearest restaurant leaves out airports, stadiums and similar sites, which are reported separately. Prices are never converted between currencies.
About Drive Thru Index: Drive Thru Index (drivethruindex.com) publishes the menu price of every item at every restaurant of the biggest fast food brands, collected each day from the chains' own ordering apps. As pricing becomes more data-driven, it exists so that customers can see what each restaurant really charges and how it compares with others nearby. It covers the US, Canada, Australia, New Zealand, the UK, Ireland, Spain, Mexico and the Netherlands. Brands are only compared with themselves, and prices are never converted between currencies. Its figures are free to quote with attribution: "Source: Drive Thru Index".
The images with this release are free to use with the credit "Image: Drive Thru Index (drivethruindex.com)".
Media contact: anthony@drivethruindex.com
Background sources
Not part of the release: reporting that backs up its one line of context, for questions from journalists.
- How restaurant loyalty programs can drive more traffic and improve experiences Restaurant Dive, 2024-08-15
Restaurant loyalty apps pull in customers' ordering history and preferences, to personalise offers and recommendations (the intro's apps and loyalty programmes). - Wendy's backtracks on dynamic pricing Restaurant Dive, 2024-02-28
Wendy's told investors it would test dynamic and AI-enabled pricing on digital menu boards from 2025, then said after a backlash that it would not raise prices at the busiest times (the intro's experiments with data-driven pricing). - Inside McDonald's push to have AI price your Big Mac CNBC, 2026-09-29
Reports a Reuters investigation into an AI tool that recommends menu prices to McDonald's restaurants; McDonald's says franchisees remain free to set their own prices. Not quoted in the release text; the page could not be fetched to check its wording, only its search listing.