Yes, you can absolutely bring a cake through TSA in 2026, as it is classified as a solid food item. However, there are specific "2026 caveats" to ensure a smooth passage. If the cake has liquid or gel-like fillings (such as a heavy custard, jelly, or thick liquid icing), it may be subject to additional screening or the 3-1-1 rule if the liquid content is deemed excessive. TSA officers in 2026 use advanced CT scanners that can see the density of the cake, so you do not usually need to remove it from your bag, but it must be in a stable container to prevent it from being crushed or appearing suspicious. It is highly recommended to carry the cake as a carry-on item rather than checking it, as the pressure and temperature changes in the cargo hold can ruin the frosting. If you are bringing an ice pack to keep the cake cool, the pack must be completely frozen solid when it reaches the security checkpoint; if it is even slightly melted or "slushy," it will be confiscated as a liquid.