The default side is Natural-Cut French Fries, made from skin-on potatoes. Most locations let you upgrade to:
- Onion Rings
- Crisscut or curly fries, where available
- A larger fry size
Drink choices cover fountain soft drinks, iced tea, and lemonade at no extra cost in most markets. Hand-Scooped Ice Cream Shakes can normally be substituted for the standard drink with an upcharge, which is the single most common combo upgrade people ask for.
A few ordering tips that save money or hassle:
- Combo upsizing raises both the fry and the drink size, so ask for only the fry upsize if that's all you want.
- If you're ordering two combos, check whether a promotional bundle covers the same food for less. Bundles often beat two individual combos.
- Sauce and topping changes are free. Adding bacon, cheese, or a second patty is not.
Combo versus meal deal is worth a second look before you order. A standard Thickburger combo and a promotional bundle covering the same sandwich can land at noticeably different prices depending on what's currently running at your location, and the app is usually the fastest way to see both side by side before you commit to one.
