Score National Hamburger Day Deals at Burger King, Shake Shack, White Castle, and More

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National Hamburger Day is celebrated every May 28. That means in 2026, this food holiday falls on a Thursday, marking the start of grilling season, and food chains celebrate by offering BOGO deals, discounts around 50% off, and freebies.

Short on time? Here are the three best deals to grab on National Hamburger Day for the steepest savings.

Hardee's and Carl's Jr.: On May 28, rewards members who buy one Famous Star burger at Hardee's or Carl's Jr. can get a second one for $0.01. Offer valid in-app only.
Irv's Burgers: First 50 guests to visit one of Irv's Burgers locations on Thursday, May 28 and mention the secret code "Just for me" will receive a FREE Roadside Single. Limit one free burger per guest.
Jack in the Box: Score a free Jr. Jumbo Jack when you make an in-app purchase of $1 or more at Jack in the Box on National Hamburger Day.

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Offers, prices, savings, and local participation may vary.

National Hamburger Day Deals 2026

Arby's

This year, Arby's is celebrating National Hamburger Day with a BOGO Free sandwich deal when you order in-app through May 31

Bad Daddy's Burger Bar

In 2026, Bad Daddy's Burger Bar is celebrating National Hamburger Day with a $10 BD's All-American Burger and a classic side. Offer valid on May 28 only.

Bobby's Burgers by Bobby Flay

On National Hamburger Day, you can enjoy a Crunchburger for $5.28 at Bobby's Burgers by Bobby Flay.

Buffalo Wild Wings

Buffalo Wild Wings is offering new rewards members a free burger with a purchase of $15 or more. Limit one.

Burger 21

On National Hamburger Day, you can grab a $5 (reg. $10.29) Cheesy burgers at Burger 21.

Burger King

This year, Burger King Royal Perks members can get a FREE hamburger with an online or in-app purchase of $3 or more on National Hamburger Day.

Checkers & Rally's

Celebrate National Hamburger Day with BOGO Classic Burgers at Checkers & Rally's. Offer valid May 27 - 28.

Dairy Queen

In 2026, Dairy Queen is offering rewards members $1 off any Signature Stackburger. Options include Backyard Bacon Ranch, Bacon Cheese Deluxe, FlameThrower, Cheese Deluxe, and Original Cheeseburger. Offer valid May 25 - 31.

Del Taco

Del Taco Rewards members can score BOGO Double Del Cheeseburgers on National Hamburger Day 2026.

Eddie Merlot's

Grab an Eddie's Prime Cheeseburger and housemade potato chips for $15 at Eddie Merlot's when you order online. If you choose to dine-in you can score this deal during Happy Hour from 4 - 6:30 (local).

Epic Burger

Grab any slider and a small drink for $3.99 at Epic Burger on National Hamburger Day. Offer valid all day on May 28.

Farmer Boys

Farmer Boys is celebrating National Hamburger Day by offering Very Important Farmer (VIF) Rewards members a $3.99 Big Cheese Cheeseburger when you order in-app. Offer valid on May 28 only.

Good Times Burgers & Frozen Custard

In 2026, get deluxe burgers for $2.99 each at Good Times Burgers & Frozen Custard from 10:30 am - close on May 28.

Habit Burger & Grill

Rewards members can enjoy BOGO Charburgers (with or without cheese) at Habit Burger & Grill. Offer valid online or in-app May 28 - June 3.

Happy Joe's Pizza

In celebration of National Hamburger Day on May 28, Happy Joe's Pizza is offering their Super Max Pizza (topped with ground beef, onions, cheese, and more), starting at $14.99.

Krystal

In 2026, Club Krystal members can enjoy an in-app exclusive deal for $0.50 Krystals on National Hamburger Day (May 28).

Mooyah Burgers, Fries & Shakes

Celebrate with BOGO burgers at Mooyah on National Hamburger Day in 2026.

Perkins American Food Co.

Order a burger, fries, and a slice of pie deal at Perkins American Food Co. for $10.99 on National Hamburger Day.

Ruby Tuesday

Score a Ruby Tuesday single patty American Smashed Burger with fries or tots and the Endless Garden Bar for $8.99. Offer valid on May 28.

Shake Shack

On National Hamburger Day 2026, you can score a FREE ShackBurger at Shake Shack when you make a purchase of $10 or more and use promo code FREEBURGER online or in-app.

Smashburger

This year, Smashburger is offering any single burger (excludes any items on the $4.99 All-The-Time menu) for $5.28 on National Hamburger Day. When ordering in-store, you must mention the deal at checkout. For online or in-app orders, use promo code 528SINGLE. Offer valid on May 28 only.

Sonic

This year, celebrate National Hamburger Day with a free Sonic Smasher or All-American Smasher with a purchase of $5 or more. Offer valid through May 31.

Sullivan's Steakhouse

On May 28, score a Signature Angus Burger and fries for $15 at Sullivan's Steakhouse when you order online. Dine-in guests can get this same deal during Happy Hours from 3 - 6 p.m. (local).

The Greene Turtle

Celebrate National Hamburger Day (May 28) in 2026 with BOGO classic burgers at The Greene Turtle.

Wayback Burgers

Wayback Burgers is offering rewards members $5 Classic Burgers on National Hamburger Day 2026. Limit two per order/rewards account.

Whataburger

On National Hamburger Day, Whataburger Rewards members can score a FREE Whataburger when you order a medium fry and medium drink online or in-app. For in-store orders, you must scan your app.