This is a really easy app to use either on your phone or you computer. Just type in whatever item you are thinking about bringing and see if it's allowed through airport security. This page also has airport security wait times, airport statuses, weather and more. To get access to the mobile app, click here: TSA Mobile App
This is the main website for the Transportation Security Administration. You can find helpful holiday travel tips, rules for carrying liquids on a plane and more useful information for travelers.