September 18 is National Cheeseburger Day. Here are some of the deals and promos I found celebrating the day.
Today is coincidentally my sister's birthday, so I'm not spending much time on this post beyond copy and pasting the deals directly from the restaurant websites.
The following offers were available last year. We won't know this year's freebies and deals until early September 2026, so be sure to bookmark this page and check back then!
- Applebee's: Get any of their 3 classic burgers with classic fries for just $8.99. Burgers via dine-in, the Applebee's website or mobile app only.
- Buffalo Wild Wings: BOGO Burgers for rewards members. Excludes lunch combos, value bundles, and burgers from the kids' menu.
- BurgerFi: BOGO cheeseburgers for $1 more.
- Burger King: Free cheeseburger with any purchase of $1+.
- Checkers: Big Buford for just $3.
- Dairy Queen: free Double Original Cheeseburger Stackburger with any app or online order of $1 or more. This limited-time digital deal runs September 15–19 and is available exclusively to existing and new DQ rewards members.
- Del Taco: BOGO Double Del only in the app.
- Dog Haus: Buy one Haus Cheeseburger, get one FREE when you order in-store or in Haus Rewards
- Farmer Boys: Score a Big Cheese for just $4. Open the app. Get the deal. Crush the burger. Easy!
- Jack in the Box: Free Jr. Cheeseburger with $1+ purchase on the Jack App
- Krystal: $1 cheese krystals (up to 5) today, online only using the code CHEESEYEAH
- McDonald's: $0.50 Double Cheeseburgers via app orders.
- Mooyah: BOGO cheeseburger
- Portillo's: 50% off burgers
- Rally's: Big Buford for just $3.
- Smashburger: $4.99 Any Single Smash® on 9/18 only with code BURGERDAY25 for online delivery or pickup orders. Mention this offer to your cashier to redeem in-store.
- Sonic: BOGO Double SONIC Smashers offer in their app.
- Wahlburgers: 50% off ALL adult burgers (excludes triples, sandwiches, and Smahlburgers). If ordering in-store, just show or mention this offer. If ordering online, use code CHEESEBURGERDAY25 at checkout.
- Wayback Burgers: $5 Classic Burgers when you order in-restaurant or through the Wayback Rewards program. Limit 2 per order It applies to orders placed in-restaurant, online, and through the Wayback Rewards program, using code $5CLASS.
I wasn't able to confirm offers from Hardee's, Carl's Jr, or Wendy's. I would check their apps to see if there are any offers.
