Yes, you can absolutely take baby wipes on a plane, and they are not subject to the standard "3-1-1" liquid restrictions. Even though they are moist, the TSA and international security agencies (including the UK's DfT) classify wet wipes—including baby wipes, makeup wipes, and antibacterial wipes—as solid items rather than liquids. This means you can carry a full, unopened pack or a half-used one in your hand luggage without needing to place it in a clear plastic quart-sized bag. They are incredibly useful for sanitizing tray tables, cleaning up spills, or freshening up during a long-haul flight. If you are traveling with an infant, you are also permitted to carry reasonable quantities of other "liquid" baby essentials like breast milk, formula, and baby food, which are exempt from the 100ml limit but must be declared for separate screening at the security checkpoint.