Yes, you can take almost all solid food items on a plane in both your carry-on and your checked suitcase. According to TSA and international 2026 security standards, items like sandwiches, fruits, nuts, and dry snacks are perfectly fine. However, any food that is a liquid or gel (such as yogurt, peanut butter, honey, or hummus) must be 3.4 ounces (100ml) or less if kept in a carry-on; if the container is larger, it must be placed in your checked suitcase. A major caveat for 2026 is International Customs: while the airline allows the food on the plane, the destination country may prohibit you from bringing it through the airport. Most countries, including the US, Australia, and Japan, have strict bans on fresh produce, meats, and unpasteurized dairy to prevent the spread of agricultural pests. Always declare any food items on your customs form to avoid heavy fines; generally, commercially sealed, processed snacks (like crackers or chocolate) are the safest bet for international travel.