Here are National Cheeseburger Day's best restaurant deals

Fast food's "value wars" are all the rage these days when it comes to getting your favorite menu items for a discount, but like the bulk of those deals being offered for a limited time, there's another steal that you'll only have one day to cash in on: National Cheeseburger Day.

In celebration of the holiday — or in another effort to drive low foot traffic — fast food and restaurant chains from McDonald's to Buffalo Wild Wings are offering savings to customers only on Wednesday, Sept. 18.

Here are some of the best deals we've found:

Buffalo Wild Wings

Maybe you've been wanting a reason to skip out on the chicken wings at Buffalo Wild Wings to try out another entree, so why not a cheeseburger — or two? On Sept. 18, Blazin' Rewards members who order one burger while dining in or on takeout and delivery orders will get a second for free.

Burger King

If your name includes the word "burger" in it, you obviously have to participate in this national holiday. Burger King's offering includes a free cheeseburger for any Royal Perks member who makes a purchase of at least $1.

RELATED STORY | Popeyes enters fast food's 'value wars' with its own $5 meal

Carl's Jr.

Another deal targeting rewards members comes from Carl's Jr. The chain is treating its loyal members to half-priced double cheeseburgers on all orders.

Dairy Queen

It's not a french fry to dip in your blizzard, but Dairy Queen is still offering a salty pairing to enjoy at a discount in celebration of National Cheeseburger Day. But its deal isn't just tied to Wednesday. From then until Sunday, customers ordering online or through its app can enjoy a free double Original Cheeseburger Signature Stackburger with a purchase of at least $1.

Jack in the Box

Jack in the Box is also cashing in on a week of deals for the holiday. Until Sept. 21, Jack Pack members can get certain discounts with any purchase of $1 or more. On Wednesday, you can get a free Jumbo Jack Cheeseburger, Thursday adds a free Smashed Jack with $20 delivery, Friday gives double points with a burger order and Saturday's deal is buy one, get one Jr. Jumbo Jack burgers.

Instacart

Even non-food makers are celebrating with discounts. On Instacart, customers who choose from its National Cheeseburger Day product collection can get $10 off their $20 purchase. This collection includes every burger must-have from mayonnaise and cheese to lettuce and buns.

McDonald's

McDonald's $5 value meal seemed to set off the "value wars" craze, and now it's doubling the discounts with a $0.50 double cheeseburger on Wednesday. The offering is different than the choice of a McChicken or McDouble in the value meal, as a double cheeseburger has an extra slice of cheese.

Sonic

The chain that recently kicked off its "Fun.99" menu is offering quarter-pound double cheeseburgers for just $1.99 on National Cheeseburger Day. This is the same price the menu item goes for on its "value wars" entry.

RELATED STORY | McDonald's reveals how much longer it intends to keep its $5 meal deal

Wendy's

Don't put those pennies in the piggy bank just yet. Wendy's is selling Jr. Bacon Cheeseburgers for only 1 cent in celebration of National Cheeseburger Day for any customer who makes another purchase. This deal lasts until Sept. 22.

White Castle

You don't have to say cheese when ordering a cheeseburger online, but White Castle is making sure you do. In its app, customers can get buy one, get one Cheese Sliders if they enter the code "SAYCHEESE."