發布於2026-10-02
The same Chicken Sandwich costs $3.99 at one Illinois KFC and $7.29 at another
As fast food pricing becomes more data-driven, Drive Thru Index compared the pickup prices of the same items at 1,997 restaurants of five chains in Illinois. Within each chain, prices for the same item differ by up to 83% from one restaurant to the next.
資料截至 。
重點事實
- KFC Chicken Sandwich: $3.99 to $7.29 (+83%)Cheapest in Belleville, IL, most expensive in Freeport, IL; median $5.39, the same as KFC's US median.
- Burger King Whopper: $5.79 to $9.19 (+59%)Cheapest in Flora, IL, most expensive in Chicago, IL; median $6.19, 2% below Burger King's US median.
- Taco Bell Crunchwrap Supreme: $5.49 to $8.49 (+55%)Cheapest in Champaign, IL, most expensive in Chicago, IL; median $6.99, 4% above Taco Bell's US median.
- Dunkin' Medium Original Blend: $2.60 to $3.99 (+53%)Cheapest in Joliet, IL, most expensive in Effingham, IL; median $3.19, 3% above Dunkin' US median.
- McDonald's Big Mac: $4.59 to $6.99 (+52%)Cheapest in Vienna, IL, most expensive in Rolling Meadows, IL; median $5.99, the same as McDonald's US median.
Fast food chains are collecting more and more data about their customers through mobile apps and loyalty programs: 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.
KFC: a Chicken Sandwich costs $3.99 at six KFC restaurants in Belleville, Caseyville, Collinsville, Granite City and O'Fallon, IL and $7.29 at four KFC restaurants in Freeport, Morris, New Lenox and Sycamore, IL, $3.30 (83%) more. Across its 92 restaurants in Illinois, the median is $5.39, the same as KFC's US median of $5.39.
Burger King: a Whopper costs $5.79 at five Burger King restaurants in Flora, Galesburg, Mount Carmel, Olney and Paris, IL and $9.19 at the Burger King in Chicago, IL, $3.40 (59%) more. Across its 263 restaurants in Illinois, the median is $6.19, 2% below Burger King's US median of $6.29.
Taco Bell: a Crunchwrap Supreme costs $5.49 at 22 Taco Bell restaurants in Champaign, Danville, Des Plaines, Schaumburg, Arlington Heights, Charleston, Chicago, Effingham, Elk Grove Village, Mahomet, Mattoon, Palatine, Rantoul, Shelbyville, Urbana and Wood Dale, IL and $8.49 at 21 Taco Bell restaurants in Chicago and Cicero, IL, $3.00 (55%) more. Across its 285 restaurants in Illinois, the median is $6.99, 4% above Taco Bell's US median of $6.69.
Dunkin': a Medium Original Blend costs $2.60 at the Dunkin' in Joliet, IL and $3.99 at two Dunkin' restaurants in Effingham and Troy, IL, $1.39 (53%) more. Across its 721 restaurants in Illinois, the median is $3.19, 3% above Dunkin' US median of $3.09.
McDonald's: a Big Mac costs $4.59 at the McDonald's in Vienna, IL and $6.99 at three McDonald's restaurants in Rolling Meadows, Rosemont and Schaumburg, IL, $2.40 (52%) more. Across its 636 restaurants in Illinois, the median is $5.99, the same as McDonald's US median of $5.99.
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.
“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.
可引用語句
The same KFC Chicken Sandwich costs $3.99 in Belleville, IL but $7.29 in Freeport, IL.
The same Burger King Whopper costs $5.79 in Flora, IL but $9.19 in Chicago, IL.
The same Taco Bell Crunchwrap Supreme costs $5.49 in Champaign, IL but $8.49 in Chicago, IL.
The same Dunkin' Medium Original Blend costs $2.60 in Joliet, IL but $3.99 in Effingham, IL.
The same McDonald's Big Mac costs $4.59 in Vienna, IL but $6.99 in Rolling Meadows, IL.
圖片
新聞稿背後的事實
每個數字皆來自我們2026-10-02的價格資料，並附上本站顯示該數字的頁面。
| 項目 | 數值 | 查看頁面 |
|---|---|---|
| KFC Chicken Sandwich: $3.99 to $7.29 (+83%) | Cheapest in Belleville, IL, most expensive in Freeport, IL; median $5.39, the same as KFC's US median. | 查看頁面 |
| Burger King Whopper: $5.79 to $9.19 (+59%) | Cheapest in Flora, IL, most expensive in Chicago, IL; median $6.19, 2% below Burger King's US median. | 查看頁面 |
| Taco Bell Crunchwrap Supreme: $5.49 to $8.49 (+55%) | Cheapest in Champaign, IL, most expensive in Chicago, IL; median $6.99, 4% above Taco Bell's US median. | 查看頁面 |
| Dunkin' Medium Original Blend: $2.60 to $3.99 (+53%) | Cheapest in Joliet, IL, most expensive in Effingham, IL; median $3.19, 3% above Dunkin' US median. | 查看頁面 |
| McDonald's Big Mac: $4.59 to $6.99 (+52%) | Cheapest in Vienna, IL, most expensive in Rolling Meadows, IL; median $5.99, the same as McDonald's US median. | 查看頁面 |
| 最便宜的KFC Chicken Sandwich（門市） | $3.99 (6) | Belleville, IL, Belleville, IL, Caseyville, IL, Collinsville, IL, Granite City, IL, O'Fallon, IL |
| 最貴的KFC Chicken Sandwich（門市） | $7.29 (4) | Freeport, IL, Morris, IL, New Lenox, IL, Sycamore, IL |
| 最便宜的Burger King Whopper（門市） | $5.79 (5) | Flora, IL, Galesburg, IL, Mount Carmel, IL, Olney, IL, Paris, IL |
| 最貴的Burger King Whopper（門市） | $9.19 (1) | Chicago, IL |
| 最便宜的Taco Bell Crunchwrap Supreme（門市） | $5.49 (22) | Arlington Heights, IL, Champaign, IL, Champaign, IL, Champaign, IL, Champaign, IL, Charleston, IL, Chicago, IL, Danville, IL, Danville, IL, Des Plaines, IL, Des Plaines, IL, Effingham, IL, Elk Grove Village, IL, Mahomet, IL, Mattoon, IL, Palatine, IL, Rantoul, IL, Schaumburg, IL, Schaumburg, IL, Shelbyville, IL, Urbana, IL, Wood Dale, IL |
| 最貴的Taco Bell Crunchwrap Supreme（門市） | $8.49 (21) | Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Chicago, IL, Cicero, IL, Cicero, IL |
| 最便宜的Dunkin' Medium Original Blend（門市） | $2.60 (1) | Joliet, IL |
| 最貴的Dunkin' Medium Original Blend（門市） | $3.99 (2) | Effingham, IL, Troy, IL |
| 最便宜的McDonald's Big Mac（門市） | $4.59 (1) | Vienna, IL |
| 最貴的McDonald's Big Mac（門市） | $6.99 (3) | Rolling Meadows, IL, Rosemont, IL, Schaumburg, IL |
研究方法、關於我們與聯絡方式
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 October 2, 2026, in US dollars. The area covers every restaurant in Illinois. Each chain is compared only with itself, on its own signature item, and only where it has at least 5 restaurants in the area; prices are never compared between chains or converted between currencies. The cheapest and most expensive restaurants leave out airports and similar special sites, which are reported separately.
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
背景資料來源
不屬於新聞稿內容：這些報導佐證了文中唯一一句背景說明，供記者提問時參考。
- 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.