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National Cheeseburger Day Deals Go Live: McDonald’s 50-Cent Double Cheeseburger Leads App-Only Offers

Brands use the Sept. 18 food holiday to push app-based, one-day discounts that emphasize loyalty enrollment.

Overview

  • McDonald’s is selling a Double Cheeseburger for 50 cents today exclusively through its app, limited to one per customer during lunch and dinner at participating locations.
  • Burger King Royal Perks members can claim a free Bacon Cheeseburger with a $1 purchase via the app or online today, part of a weeklong slate of daily offers.
  • White Castle is running a buy-one-get-one Cheese Slider promotion Sept. 18–21 with code SAYCHEESE, limited to one free slider per customer.
  • Dairy Queen is offering DQ Rewards members a free Double Original Cheeseburger Stackburger with a $1 purchase through Sept. 19 on app or online orders.
  • Wider industry deals are app- or loyalty-based, including DoorDash’s $9 off $25 Shake Shack delivery today and Wendy’s 1-cent Jr. Bacon Cheeseburger with purchase through Monday.