For domestic flights, the TSA allows CBD products containing no more than 0.3% THC on a dry weight basis or those approved by the FDA. However, some states like Idaho, Nebraska, and South Dakota have stricter laws, so traveling to or from these states may pose challenges. Always keep CBD in its original packaging to show compliance. For international flights, laws vary widely, and even if compliant, there’s a risk of delays or confiscation due to misinformed officials. It’s best to check the laws of your destination and layover countries or consider purchasing CBD legally at your destination.