Yes, you can absolutely take a packed lunch on a plane in 2026, provided you follow the TSA's 3-1-1 rule for any liquid or gel components. Solid foods like sandwiches, wraps, salads (without heavy dressing), hard-boiled eggs, pasta, and pizza are perfectly fine for carry-on luggage. The "trick" is the consistency: items like hummus, yogurt, peanut butter, soup, or even certain soft cheeses are classified as "liquids/gels" and must be in containers of 3.4 ounces (100ml) or less. If you bring a salad, keep the dressing in a separate small container within your quart-sized liquids bag. If you are bringing perishables that require cooling, your ice packs must be completely frozen when you pass through security; if they are slushy or melting, they will be confiscated. Taking your own lunch is a major "travel hack" for 2026, as airport food prices have reached record highs and airline meal quality remains inconsistent.