You can carry cannabis on some domestic flights, but not because aviation law allows it. Marijuana remains a Schedule I controlled substance under federal law, so transporting it on any aircraft in U.S. airspace is illegal, and taking it across state lines is a federal offense. TSA does not search for cannabis and its officers focus on security threats, yet if a prohibited substance turns up during screening, TSA refers the matter to law enforcement, who then apply the rules of the airport's state.
can you travel with cannabis internationally
What does TSA actually say about marijuana?
TSA states on its website that officers do not search for marijuana or other drugs, and that screening exists to stop threats to aviation security. If an illegal item is found, officers must report it to local, state, or federal law enforcement. The outcome therefore depends on the airport, the quantity, and the law of the state where you are standing, not on TSA policy alone.
can you travel with cannabis internationally
Can you fly with cannabis between states?
No. Carrying cannabis from a legal state to another state violates federal law, even when both states allow adult use. Airports, airspace, and interstate commerce all fall under federal jurisdiction. Bags can also be searched by federal agents at international terminals, where a cannabis find carries additional consequences.
Can you fly with CBD or hemp products?
Hemp products containing no more than 0.3% delta-9 THC on a dry weight basis are legal under the 2018 Farm Bill, but state rules and airline policies still apply. CBD with more THC than that is treated as marijuana. Check the product's certificate of analysis before you pack it.
Does a medical cannabis card let you fly with your medicine?
No state medical card protects you under federal law, and no federal rule recognizes one for air travel. Some states with medical programs publish airport guidance, but that guidance affects local police priorities, not federal enforcement. Carry documentation only where the state you are departing from requires it.
Can you fly internationally with cannabis?
No. Cannabis is illegal under federal law and banned by most countries, with penalties that can include fines, prison, and lifetime entry bans. U.S. Customs and Border Protection may inspect luggage at international checkpoints and can seize cannabis found there. Leave it at home for any international itinerary.
What happens if cannabis is found at the checkpoint?
Procedures vary by location. At airports in legal states, local police often ask travelers to discard a small personal amount or issue a citation. In states where cannabis is illegal, officers can make an arrest and pursue criminal charges. Vape devices, batteries, and liquids follow separate FAA and TSA rules unrelated to cannabis.
How much cannabis can you bring on a plane?
- Federal law sets no legal allowance on flights, so any amount is technically prohibited.
- State possession limits apply on the ground and are often modest, such as one ounce of flower for adults 21 and over.
- Cartridges and disposables count toward liquid limits, and lithium batteries belong in carry-on bags, not checked luggage.
Do airport rules differ by state?
Airports in California, Colorado, Oregon, Washington, Nevada, and Alaska have publicly allowed small personal amounts because local police choose not to prioritize enforcement. Airports in states where cannabis is illegal, and federally controlled areas within any airport, take a stricter approach. Security checkpoints often sit under joint federal and local jurisdiction.
Can you put cannabis in a checked bag?
Checked bags are subject to inspection and can be held while law enforcement is contacted. Packing cannabis there does not make it legal and may trigger a search by the airline or by federal agents.
Do airlines have their own cannabis rules?
Yes. Airlines are private companies, and many prohibit transporting marijuana or using it on board, citing federal law. Gate agents and flight crews can deny boarding to a passenger who appears intoxicated.
Is cannabis allowed in airport smoking areas?
No. Airport property is generally smoke-free and vape-free, and cannabis use there can lead to fines or removal from the terminal. Consuming before a flight also raises the risk of being denied boarding.