Yes — you can fly with hemp-derived CBD in the US, as long as it contains 0.3% THC or less on a dry weight basis, per TSA policy. The safest thing to fly with is CBD isolate, which tests at 0% THC: there's no THC for the 0.3% line to catch, and no ambiguity for a screener to interpret.
What TSA actually says
TSA's published policy states that "products that contain no more than 0.3% THC on a dry weight basis or that are approved by the FDA are permitted in carry-on and checked bags." TSA screens for security threats, not drugs — but if officers find a substance, they refer it to law enforcement, and law enforcement applies federal law. That's why the 0.3% number matters: it's the federal definition of legal hemp under the 2018 Farm Bill, and it's the exact threshold TSA references. Learn the broader legal picture on our is CBD legal page.
Domestic vs international at a glance
| Situation | Rule | Carry the COA? |
|---|---|---|
| US domestic flight — isolate (0% THC) | Permitted, clearest case | Yes, recommended |
| US domestic flight — full spectrum (≤0.3% THC) | Permitted by TSA policy | Yes, essential |
| US domestic flight — above 0.3% THC | Not permitted | Don't bring it |
| International flight | Country-by-country; many ban any CBD | May not help — check first |
Practical packing tips
- Keep original packaging. A labeled bottle with a QR code to the lab report reads as legitimate; an unlabeled dropper reads as a question.
- Bring the Certificate of Analysis. It's the document that proves the THC number. Here's how to read one so you know what you're showing them.
- Carry-on or checked — both fine by policy. The liquid rule applies to containers, not the product itself; tinctures under 3.4 oz are no issue in carry-on.
- International: treat it as a different country's law. The US hemp definition doesn't travel. Check the destination's rules before you fly — several popular destinations classify any CBD as controlled.
Why isolate is the traveler's choice
Every enforcement conversation about flying with CBD comes down to one number: THC. Isolate eliminates that conversation — it's tested at 0%, not "under a legal limit." It's also the cheapest form of CBD per milligram, which is why our concentrate runs about $0.006/mg. A bottle of 8,000 mg rides in your bag with zero THC questions and a COA to back it up.