The basic rule of thumb is if it's solid, it's probably safe to take it through security. These include cooked and uncooked items like baked goods, turkey, chicken, stuffing, casseroles, fresh fruits and vegetables, and spices.
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Firearms, ammunition, and fireworks are prohibited, as are all knives and safety razors (including pocket knives and Swiss Army knives). Straight razors and replacement blades for straight razors are also not allowed. Most tools also cannot be packed in carry-on luggage, as they have the potential to cause harm.
Keep hot foods hot (140°F or higher) by wrapping them in foil, and then in heavy towels. ...
Keep cold foods cold (40°F or lower) by placing them in a cooler with ice or freezer packs or an insulated container with a cold pack designed to keep food cold.
One of the foods you can't bring on the plane is mashed potatoes. They're considered a liquid so unless you're only bringing 3.4 ounces of mashed potatoes, just put them in a checked bag or make them when you get there.
Solid food items (not liquids or gels) can be transported in either your carry-on or checked bags. Liquid or gel food items larger than 3.4 oz are not allowed in carry-on bags and should be placed in your checked bags if possible.
Checked Bags: YesSolid food items (not liquids or gels) can be transported in either your carry-on or checked bags. Liquid or gel food items larger than 3.4 oz are not allowed in carry-on bags and should be placed in your checked bags if possible.
You can bring a water bottle, or container of water in your carry on.As long as it's in a 100 ml (3.4 oz.) or smaller container. There are some exceptions for babies needing formula or breast milk, and people with medical needs. Empty water bottles are allowed.
There is no limit to the amount of food you can bring on board, as long as it can fit in your carry-on luggage! You can also pack your food any way you'd like — in a lunch bag, in resealable plastic bags, in Tupperware, etc.