Any item that alarms or is unable to be screened will not be permitted in your carry-on bag. We recommend packing all liquids, gels, and aerosols that are over 3.4 oz or 100 ml in your checked baggage, even if they are in a secure, tamper-evident bag.

Under 2026 TSA regulations, the list of prohibited liquids in carry-on bags includes any substance that is flammable, explosive, or corrosive, regardless of its size. This means that items like gasoline, lighter fluid, spray paint, and certain types of bleach are strictly banned from both carry-on and checked luggage. Additionally, the "3-1-1 rule" still applies to all non-essential liquids: you cannot bring any liquid, gel, or aerosol—including water, shampoo, or spreadable foods like peanut butter—in a container larger than 3.4 ounces (100 ml) through the security checkpoint. "Open" containers of alcohol or any liquor over 140 proof (70% ABV) are also prohibited. It is a common misconception that "half-empty" large bottles are okay; TSA assesses the container's capacity, so a 200 ml bottle of lotion will be confiscated even if it only has 10 ml of product inside. The only exceptions to the 100 ml rule are "medically necessary" liquids like insulin, baby formula, and breast milk, which must be declared and screened separately. Any liquids purchased after the security checkpoint, such as a large bottle of water or duty-free wine, are permitted on the aircraft as they have already been vetted.