Short answer
TSA does not look for marijuana. Its officers screen passengers for weapons and explosives. If an officer finds cannabis during screening, the officer calls a law enforcement officer at the airport. That agency decides what happens next. Federal law applies at every US airport, in every state.
TSA Cannabis Travel Restrictions in the US
What TSA states
TSA publishes its position on its site. Screening focuses on threats to aviation. TSA officers do not search for marijuana or other drugs. The same page states that if an illegal substance turns up during screening, TSA refers the matter to law enforcement.
Can You Fly With CBD Oil? TSA Rules and State Law
The referral is the part that matters. TSA makes the call to police. The police department at that airport makes the next call. Rules differ by city and state. A passenger in Denver and a passenger in Dallas face different outcomes.
flying with weed airport rules
Federal law
Marijuana is a Schedule I controlled substance under the Controlled Substances Act. The Drug Enforcement Administration lists it in that category. No state legalization law changes the federal classification. Airports, runways, and aircraft sit under federal jurisdiction. Air travel is interstate commerce.
can you fly with cbd oil tsa regulations
Carry-on and checked bags
- Carry-on bags pass through X-ray. Officers can pull a bag and open it by hand at the checkpoint.
- Checked bags get X-ray and explosive trace screening. TSA can open a checked bag when the owner is not present.
- Liquid cannabis products, such as tinctures and oils, fall under the 3.4 ounce carry-on limit. Larger amounts go in checked bags.
- Lithium vape batteries belong in carry-on for most airlines. Check with the airline before the trip.
Crossing state lines
Carrying cannabis from one legal state into another is a federal offense. Federal prosecutors treat large amounts as trafficking. Amounts and penalties differ by case and district.
International travel
Customs and Border Protection staffs international terminals. CBP officers enforce federal law at the border and at ports of entry. A drug violation can make a traveler inadmissible to the United States. Non-citizens may face visa consequences. CBP states that cannabis use can affect Trusted Traveler program eligibility.
Hemp and CBD
The 2018 Farm Bill legalized hemp with a THC concentration of 0.3 percent or less on a dry weight basis. TSA states that hemp-derived CBD products are allowed in carry-on and checked bags in some cases. FDA-approved medication that contains cannabis is permitted to fly. Paperwork showing product test results helps. It does not guarantee an outcome.
Medical marijuana cards
A state medical card is not a federal document. TSA does not treat it as federal authorization. A referral to police remains possible at any checkpoint.
Drug dogs
Most airport canine teams train on explosives. Some local agencies run drug detection dogs in terminals and parking areas. Practice varies by airport and by agency. Exact numbers are not public.