No. TSA does not allow cannabis flower in carry-on bags. Cannabis is a Schedule I controlled substance under federal law. TSA is a federal agency that screens passengers at airports in all 50 states, including states where cannabis is legal. State law does not override the federal rule at the checkpoint.

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What TSA says about marijuana

TSA states that its officers screen for threats to aviation, not for drugs. TSA also states that if an officer finds marijuana during screening, the officer refers the matter to local law enforcement. TSA does not decide the outcome. The local police agency does.

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Outcomes vary by airport and city. Police may seize the flower. Police may issue a citation. Police may make an arrest. In some jurisdictions, police take no action on small amounts. A referral can delay boarding and can cause a missed flight.

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Federal status of cannabis flower

Cannabis sits in Schedule I under the Controlled Substances Act. Medical cards do not change this. A dispensary receipt from a legal state does not change this. Airport property is federal property for screening purposes, and the checkpoint is a federal process.

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Amount, packaging and bag type

There is no legal carry limit for flower on a flight. Vacuum sealing, labeled packaging, a smell-proof container, or placing the flower in a checked bag does not create an exception. Checked bags face the same referral. TSA can open checked bags and can call police for either bag type.

CBD and hemp flower

CBD flower is cannabis flower. It falls under the same federal rule at the checkpoint. Hemp with less than 0.3 percent delta-9 THC is legal under the 2018 Farm Bill, but an officer cannot test THC content at a checkpoint. Plant material looks the same in the bag. Expect a referral.

Edibles, oils and tinctures

Liquid and gel cannabis products fall under the carry-on limit of 3.4 ounces per container, all inside one quart bag, one bag per passenger. The liquid rule does not make a THC product legal to carry. It only sets container size.

International flights

Customs and Border Protection enforces federal law at ports of entry. Cannabis is barred on inbound and outbound international travel. CBP states that cannabis use, including use in states where it is legal, can affect eligibility for trusted traveler programs.

Practical options

TSA rules on cannabis are published on tsa.gov. State rules differ and do not apply to the federal checkpoint.