Delta-9-tetrahydrocannabinol (THC) is the primary psychoactive component of cannabis and is illegal under federal law in the United States. Therefore, it is illegal to take THC on a plane, regardless of whether it is in the form of edibles, oil, or other products.

The Transportation Security Administration (TSA) is responsible for screening passengers and their luggage at airports in the United States. While the TSA’s primary focus is on identifying potential security threats, they are also responsible for enforcing federal laws, including those related to drugs and controlled substances.
According to the TSA’s website, “Marijuana and certain cannabis-infused products, including some Cannabidiol (CBD) oil, remain illegal under federal law except for products that contain no more than 0.3 percent THC on a dry weight basis or that are approved by FDA.” This means that any product containing THC, regardless of whether it is legal in the state you are departing from or arriving in, is illegal under federal law and cannot be taken on a plane.
If you are caught attempting to bring THC or other illegal drugs on a plane, you could face serious legal consequences, including fines, imprisonment, and/or the revocation of your TSA PreCheck or Global Entry privileges.
There are a few exceptions to this rule, however. For example, the TSA does not actively search for drugs or controlled substances, and their primary focus is on identifying potential security threats. If they happen to come across marijuana or other drugs during the screening process, they will alert law enforcement officers, who will then decide how to proceed.
Additionally, some states have legalized marijuana for recreational or medicinal purposes, but it is important to note that this does not change the fact that it is still illegal under federal law. Some airports in these states have installed “amnesty boxes” where passengers can dispose of any illegal drugs or substances before going through security. However, this is not a guarantee that you will not face legal consequences if you are caught with marijuana or other drugs in your possession.
In summary, it is illegal to take THC on a plane, regardless of whether it is legal in the state you are departing from or arriving in. The TSA’s primary focus is on identifying potential security threats, but they will also enforce federal laws related to drugs and controlled substances. If you are caught attempting to bring THC or other illegal drugs on a plane, you could face serious legal consequences, including fines, imprisonment, and/or the revocation of your TSA PreCheck or Global Entry privileges. Therefore, it is best to avoid bringing any illegal drugs or substances on a plane and to dispose of them in the appropriate manner before going through security.