Burger King is rolling out the red carpet for its Royal Perks members to celebrate National Cheeseburger Day.

The foodie holiday, which falls on Thursday, Sept. 18, has inspired many restaurants to cook up fun freebies for customers. Burger King is upping the ante, however, with several days of deals.

Below, we’re sharing everything you need to know to take advantage of the limited-time offers.

Royal Perks Members Can Enjoy Four More Days of Deals

Burger King kicked off its National Cheeseburger Day festivities on Sept. 15 and has already run a few sales for rewards members.

In the days to come, customers can expect the following offers:

  • Sept. 18: Free Bacon Cheeseburger with a $1+ purchase
  • Sept. 19: Free Whopper Jr. with a $1+ purchase
  • Sept. 20: Free Cheeseburger with a $1+ purchase
  • Sept. 21: Free Original Chicken Sandwich (OCS) with a $1+ purchase

The single-use offers are valid at participating locations on the Burger King app or website. They aren’t valid during breakfast hours, except at select locations, and can’t be combined with other deals. Lastly, they’re not valid in Alaska, Hawaii and U.S. territories.

Other Restaurants Offering National Cheeseburger Day Deals

The freebie fun doesn’t stop there. Plenty of other restaurants are also grilling up deals for customers on National Cheeseburger Day. Here’s a look at the highlights:

  • Dairy Queen: Rewards members can get a free Double Original Cheeseburger Stackburger when place an order of $1 or more in the chain’s app or website through Sept. 19.
  • McDonald’s: Customers who order in the chain’s app can get a Double Cheeseburger for 50 cents on Sept. 18. The single-use offer can be redeemed at participating locations.
  • Red Robin: Participating Red Robin locations will continue to serve the Big Yummm Burger Deal on National Cheeseburger Day. The $9.99 deal includes a Double Tavern Burger with a bottomless side and a bottomless soda, iced tea or lemonade.
  • Smashburger: Participating Smashburger locations are giving customers a single Smashburger for $4.99 on Sept. 18. The offer is valid for dine-in, pickup and delivery orders in the chain’s website or app.
  • Sonic: Customers can score a free Double Sonic Smasher burger when they purchase another on Sept. 18 in the Sonic app.