Yes, you can absolutely bring a burger through airport security in 2026, as it is classified as a "solid food item" by the TSA and most international security agencies. Whether it is a homemade burger or one purchased from a fast-food outlet like McDonald's or Shake Shack, it is permitted in your carry-on bag. The only potential "hiccup" occurs if your burger is heavily laden with liquids or gels, such as a large amount of loose mustard, mayo, or a cup of dipping sauce, which must comply with the "3-1-1" rule (3.4 oz or less). However, the condiments already spread on the bun are usually not an issue. It is recommended to keep the burger in its original wrapping or a clear plastic bag to make the X-ray screening process faster, as dense food items can sometimes obscure other items in your bag, leading to a manual search. Keep in mind that while you can bring the burger through security, if you are flying internationally, you should eat it before you land; most countries have strict customs regulations regarding the import of meat and dairy products, and an uneclared burger in your bag could lead to a significant fine at your destination's agricultural checkpoint.