Transporting a vape through airport security is relatively easy as long as you follow the strict FAA and TSA safety regulations regarding lithium batteries. You are legally permitted to bring a vape or e-cigarette on a plane, but it MUST be in your carry-on luggage or on your person; it is strictly prohibited in checked baggage due to the fire risk posed by the batteries in the cargo hold. When going through the X-ray, you generally do not need to take the vape out of your bag unless an officer asks to inspect it. However, you should ensure that any "e-liquid" follows the 3-1-1 rule (containers under 3.4 oz in a clear quart-sized bag). To avoid issues, it is highly recommended to empty your vape tank before the flight, as the changes in cabin pressure can cause the liquid to leak and damage your device or belongings. Be aware that while the transport of the device is easy, using it or "stealth vaping" on the aircraft or inside most terminals is a federal offense that can lead to massive fines or arrest.