So, what are the rules exactly? Well, the TSA says that solid foods are allowed, but liquids and gels are a no-go, unless they're in a 3.4-ounce container or less. That means you can bring a sandwich, some chips, or a piece of fruit, but leave the soup and ice cream at home.
But, what about peanut butter and hummus? Those are a bit of a gray area, but the TSA says they're okay as long as they're in a 3.4-ounce container or less. Just don't try to sneak on a gallon of peanut butter, that's just crazy talk. And, by the way, did you know that peanut butter is a great in-flight snack because it's high in protein and doesn't make a mess?
Can I Bring Food on a Plane? Airline Rules & Travel Tips | Trip.com
Now, let's talk about banned snacks. You can't bring meat or dairy products on a plane, unless they're packaged and sealed. That means no fresh cheese or raw meat, sorry charcuterie lovers. And, don't even think about bringing livestock on board, that's just plane crazy.