Happy 18th Birthday, Smashburger! The Denver-born burger chain is celebrating its 18th birthday by offering it loyal customers a juicy deal on its popular burgers — including Singles and Doubles. Do you know where the restaurant chain’s first location is at in Colorado? (Hint: It’s on South Colorado Boulevard in Glendale!)
Image: Smashburger
Smashburger is celebrating the milestone birthday by rolling back prices to its first year in business in 2007.
From June 11 to 30, 2025, Smasburger is offering a Single Burger for just $4.99 or a Double Burger for $6.99 at participating locations in Colorado. .
The meaty offer is only available for SmashRewards members. .
There is no limit, so you get enough bargain birthday burgers for everyone at home, in the office or on the team.
The offer is available in-restaurant and online.
You must mention the offer at checkout in-restaurant. For online orders through Smashburger’s site or app, use promo code 499SINGLE or promo code 699DOUBLE, respectively.
Smashburger has .
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Smashburger – Multiple Locations
CO