Burger King is running a new promotion where they’re offering a free Whopper sandwich with any Ch’King Sandwich purchase via the brand’s app or online through June 20, 2021.
Burger King’s buy one Ch’King Sandwich, get one Whopper for free deal can be found in the offers section of the chain’s mobile app and online at BK.com. There’s a limit of one free Whopper sandwich per user and you must apply the coupon before placing your order to unlock the deal.
The new Ch’King features a hand-breaded chicken filet, served on a toasty potato bun with crisp pickles and a savory signature sauce.
The chain’s signature Whopper features a quarter-pound flame-grilled beef topped with sliced tomatoes, lettuce, mayonnaise, ketchup, pickles, and sliced white onions, all on a soft sesame seed bun.