Say cheese! Cheeseburger lovers will definitely have something to smile about at McDonald’s on National Cheeseburger Day — Sept. 18, 2026.
Just about everyone has enjoyed one of the Golden Arches’ popular cheeseburgers. And, for one day only, bite into one at a bargain price — FREE.
 Photo: McDonald’s On National Cheeseburger Day, Sept. 18, 2026, McDonald’s is offering a FREE Double Cheeseburger with a $1 minimum purchase at participating locations.
A Double Cheeseburger is regularly $3.29. Price may vary by location.
The offer is only available for MyMcDonald’s Rewards members via the McDonald’s app. Join MyMcDonald’s Rewards here.
Limit one per person.
Love the Golden Arches? Get the best McDonald’s deals with our insider tips.
Hungry for more food deals?
Who can resist a cheeseburger? National Cheeseburger Day on Sept. 18, 2026, gives you permission to have more than one burger complete with melted cheese and all the toppings.
Restaurants join in the fun by offering some juicy deals on the cheesy day. Remember, local restaurants and other businesses may offer deals on this day, too — so check our Living on the Cheap network of sites for more offers. We’ll update this list as we find new offers, so keep checking back.
If you’re a burger fan, remember to look for National Hamburger Day deals on May 28, too!
Bad Daddy’s Burger Bar
Go spicy on National Cheeseburger Day!
On Sept. 18, 2026, Bad Daddy’s Burger Bar is offering its limited-time Jalapeño Business burger (with a Classic Side) for just $10 — for dine-in only.
The bold burger is stacked with cheddar cheese, fresh jalapeño slices, a housemade raspberry bacon jam and finished with a flash-fried fresh jalapeño — for the perfect balance of sweet, smoky and spicy!
There are 35+ locations in the U.S.
Buffalo Wild Wings
Go wild on National Cheeseburger Day!
On Sept. 18, 2026, Buffalo Wild Wings is offering a buy-one-get-one FREE Cheeseburger. The offer is not valid on lunch combo or kids’ menu burgers.
There are 1,364 locations in U.S.
Dairy Queen
Chill out at Dairy Queen on National Cheeseburger Day!
From Sept. 14 to 18, 2026, DQ is offering a FREE Original Cheeseburger Signature Stackburger with any purchase of $1 or more. The offer is only available in the DQ app.
There are 4,178 locations in the U.S. However, not all locations serve the full menu, so double-check first.
Denny’s
Celebrate National Cheeseburger Day with Denny’s!
On Sept.18, 2026, Denny’s is offering a buy-one-get-one 50% off Diner QP Burger.
Part of the restaurant’s new Triple Play menu, the Diner QP burger consists of a 100% all-beef patty, American cheese, diced onion, pickles, mustard and ketchup — all on a Brioche bun.
Find locations nationwide here.
Dog Haus
Hot dog! It’s a National Cheeseburger Day deal from Dog Haus!
Dog Haus is giving customers who purchase a cheeseburger through their loyalty account on Sept. 18, 2026 a reward for a FREE cheeseburger on a future visit.
There are 50+ locations in the U.S.
McDonald’s
The Golden Arches has been serving its iconic cheeseburgers for more than 85 years, so it’s the perfect place to celebrate National Cheeseburger Day.
On Sept. 18, 2026, McDonald’s is offering a FREE Double Cheeseburger with a $1 minimum purchase.
The cheesy deal is only available for MyMcDonald’s Rewards members.
MOOYAH Burgers
On Sept. 18, 2026, MOOYAH Burgers is offering a buy-one-get-one FREE burger — valid on all MOOYAH burgers, including the MOOYAH Cheeseburger, MDC Double Cheeseburger, Hot Bacon Jam, Mushroom Swiss Burger and Double Diablo.
The offer is only available for MOOYAH Rewards members.
MOOYAH Burgers has locations in 20 states.
Perkins Restaurant & Bakery
Celebrate the cheesy day at Perkins Restaurant & Bakery with the ultimate dinner trio BFP (burger, fries and pie!) — starting at just $10.99.
Find locations nationwide here.
Smashburger
In celebration of National Cheeseburger Day, Smashburger is offering a cheesy deal for cheeseburger fans!
On Sept. 18, 2026, Smashburger is offering Any Single Smashburger for just $1— exclusively for SmashRewards members. Any add-ons cost extra.
Find participating locations here.
Whataburger
What a National Cheeseburger Day deal at Whataburger!
On Sept. 18, 2026, Whataburger is offering a FREE Bacon & Cheese Whataburger Jr. with the purchase of a medium fry and medium drink — exclusively for Whataburger Rewards members.
There are 1,211 locations in the U.S.
Say cheese! Sept. 18, 2026 is National Cheeseburger Day and hungry bargain hunters will have much to smile about at Smashburger.
In celebration of the cheesy day, the popular burger chain is offering a special one-day-only deal for cheeseburger lovers.
Add the restaurant’s popular Smashfries and you’ve got the perfect combo to celebrate the day.
 Photo: Smashburger $1 National Cheeseburger Day Special
On Sept. 18, 2026, Smashburger is offering Any Single Smashburger for just $1 at participating locations.
Choose from the restaurant’s Classic Smashburgers to Signature Builds. Any add-ons cost extra.
The deal is only available for SmashRewards members. Join SmashRewards here.
Limit one offer per person.
The cheesy savings are available in-restaurant, as well as via Smashburger’s site or app.
There are 160 locations in the U.S.
Hungry for more food deals?
Are you awake? You can’t go to bed without a late-night snack! And a delicious cookie definitely hits the spot — especially when it’s fresh from the oven.
Get ready to slip into your coziest PJs and satisfy those late-night cravings at Insomnia Cookies’ 8th annual PJ Party on Sept. 15, 2026.
Join the fun to score FREE cookies, giveaways and sweet savings at the popular cookie shop.
 Image: Insomnia Cookies FREE Cookie Giveaway
On Sept. 15, 2026, Insomnia Cookies is giving any customer in their PJs a FREE Classic Cookie at participating locations — from 8 p.m. to closing.
Limited time only and Deluxe cookies are excluded from the giveaway.
Limit one cookie per person.
PJ Party
The nighttime fun continues with 174 campus locations taking the celebration even further through giveaways, event décor and special in-bakery experiences.
The giveaways include koozies, totes, pens, lip balms, sticker packs and Grace & Stella energizing eye patches, while supplies last.
Find the list of participating locations here.
PJ Party Offers
The party doesn’t stop with just a FREE cookie.
Customers at every Insomnia Cookies bakery in the U.S. can take advantage of these additional PJ Party offers:
25% off ice cream cup or pint: Fans can receive 25% off ice cream cups or pints all day on Sept. 15, 2026 — in-bakery only. The offer excludes Cookie’wiches and ice cream served on a cookie, brookie or brownie.
Buy 6, Get 2 FREE: Buy six Classic cookies in-shop and receive two (2) Classic Cookies FREE — through Sept. 27, 2026. Limited-time cookies may be added for an additional charge.
Buy 12, Get 4 FREE: Buy 12 Classic cookies via the Insomnia Cookies app and receive four (4) Classic Cookies FREE — through Sept. 27, 2026. Limited-time cookies may be added for an additional charge.
Double Rewards Points: Insomnia Rewards members earn double Rewards points all day on September 15, 2026.
Review all the details of the celebration here.
For locations nationwide, click here.
Hungry for more food deals?
Ahoy, ye frugal mateys!
If ye looking for tasty treasures on the cheap, grab an eye patch and sail over to Long John Silver’s for a little fun and FREE food on Talk Like a Pirate Day.
 Image: Long John Silver’s On Sept. 19, 2026, talk like a pirate at Long John Silver’s and ye be rewarded with a FREE piece of fish or chicken at participating locations, while supplies last.
Here are a few suggestions: “Arrgh, I’ve come to plunder me free food!” or “Ahoy, matey! I’ve come for me free fish!” No need to dress up — just do your best pirate impression for the crunchy catch.
However, for more adventurous buccaneers, dress like a pirate and earn an extra special treasure – a FREE two-piece fish or chicken basket.
The giveaway does not include grilled items, cod or drinks.
Limit one offer per person.
Temporary Tattoos Giveaway
Team members will also be handing out FREE pirate-themed temporary tattoos, while supplies last.
For locations nationwide by state, click here.
Hungry for more food deals?
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