Drinks and other liquids, food and gels and aerosols purchased inside the secure area of the airport don't have to conform to the 3-1-1 rule. Outlawed Liquids, Gels and Aerosols. The TSA allows travelers to bring most types of liquids, gels and aerosols aboard a plane, but it does outright forbid a few items. read more
Gel and aerosol deodorants are a different story -- they do not qualify as solids. Instead, you must put them in your quart-sized clear plastic baggie along with any other gels and liquids you wish to carry onto the plane. To go this route, your deodorant’s original size must be 3.4 ounces, or 100 ml, or less. read more