Can you fly with marijuana, cannabis, or CBD? Current TSA rules and federal law for air travel.
Key Facts
Marijuana remains illegal under federal law — federal law applies at all U.S. airports
TSA's mission is security, not drug enforcement, but they will refer illegal substances to law enforcement
Hemp-derived CBD with ≤0.3% THC is federally legal and permitted through checkpoints
FDA-approved CBD medications (like Epidiolex) are allowed
Marijuana is illegal under federal law, and airports are federal jurisdiction — so it is not permitted in carry-on or checked bags even on a flight between two legal states. TSA does not search for drugs, but officers must refer anything they find to law enforcement. Hemp-derived CBD with 0.3% THC or less is allowed.
How cannabis products are handled at the checkpoint
Screening looks for threats, not drugs — X-ray and body scanners are tuned to weapons and explosives. Cannabis is usually found incidentally, when a bag is opened for an unrelated alarm.
A find triggers a referral, not a TSA penalty — TSA has no drug-enforcement authority. Officers stop screening and call the local airport police, who decide what happens next.
Local police apply local law — At airports in legal-cannabis states, small personal amounts are often simply discarded or ignored. Elsewhere the same amount can mean a citation or arrest.
CBD needs clear labeling — Officers cannot test THC content at the checkpoint. Retail packaging that states "hemp-derived" and lists 0.3% THC or less resolves questions far faster than an unlabeled bottle.
Liquid CBD still follows 3-1-1 — A CBD tincture, oil, or lotion in carry-on must be 3.4 oz or smaller and fit the quart bag. Larger bottles go in checked baggage.
What is and is not permitted
Permitted
Hemp-derived CBD oil, capsules, and topicals with 0.3% THC or less
FDA-approved cannabis-derived medication such as Epidiolex
Empty vape devices and pens, in carry-on only, with no cannabis cartridge
CBD gummies and edibles clearly labeled as hemp-derived
Not permitted in either bag
Cannabis flower, pre-rolls, and shake, including medical-card purchases
THC cartridges, dabs, wax, and concentrates
THC edibles, tinctures, and capsules
Delta-8 and similar THC products, whose legal status varies by state
Before you fly
Consume or leave cannabis behind rather than packing it — airport amnesty boxes exist at some terminals
Keep CBD in original retail packaging with a certificate of analysis if you have one
Check destination law separately; international routes add customs penalties that far exceed domestic ones
Common mistakes with cannabis and CBD
Assuming a state medical card carries any weight at a federal checkpoint.
Believing a legal-to-legal route avoids federal jurisdiction — the airport itself is federal.
Packing cannabis in checked baggage on the theory that it is not searched; checked bags are screened too.
Carrying unlabeled CBD oil, which cannot be distinguished from THC oil at the checkpoint.
Putting a THC cartridge in a carry-on vape pen and forgetting it is there.
Flying internationally with CBD, which is banned outright in many countries.
Frequently Asked Questions
Can I fly with marijuana if it's legal in my state?
Marijuana remains illegal under federal law, and federal law applies at all U.S. airports regardless of state laws.
Can I bring CBD oil through airport security?
Hemp-derived CBD products containing no more than 0.3% THC are permitted through TSA checkpoints.
Does TSA search for drugs?
No, TSA's primary mission is security — they screen for weapons, explosives, and threats to aviation. However, if illegal substances are discovered, TSA will refer the matter to law enforcement.