National Cheeseburger Day 2026 deals: Score free food from McDonald’s, Burger King, Smashburger, and more

National Cheeseburger Day 2026 is a special occasion filled with limited-time offers and freebies from popular fast-food chains. This day, celebrated on September 18, sees major players like McDonald's, Burger King, Five Guys, Smashburger, and more joining in on the fun.

McDonald's is offering a free Double Cheeseburger to MyMcDonald's Rewards members who make an in-app purchase of at least $1. At Burger King, Royal Perks members can grab a free Bacon Cheeseburger with a $3 minimum purchase using the BK app. Five Guys is giving customers a second burger for free when they order any burger, using the promo code BOGOBURGER in the Five Guys app or on the website.

Smashburger is offering a single Smash burger for just $1 for its SmashRewards members. Dairy Queen is providing a free single Original Cheeseburger Stackburger with any $1+ app order through September 18. Wendy's is giving a free Dave’s Single Cheeseburger to Rewards members who add it to any order.

This day is a great opportunity to indulge in your love for cheeseburgers and take advantage of these exciting deals.