Is It Legal to Bring Cannabis Into or Out of Thailand?

No, it is not legal to bring cannabis into or out of Thailand. Import and export of cannabis are prohibited, even if you hold a valid prescription from another country, and airports actively enforce this. This applies to arriving with cannabis and to leaving with cannabis bought legally inside Thailand. International transport of cannabis is treated as a serious offense.

Bringing it in

Arriving in Thailand with cannabis, including for personal medical use with a foreign prescription, is not permitted. A medical card or prescription from your home country has no legal effect here. Travelers who assume their home-country status carries over are mistaken, and the consequences at the border can be severe.

Taking it out

Leaving Thailand with cannabis is equally prohibited, including cannabis purchased legally inside the country with a Thai prescription. A legal purchase does not become legal to export. Many destination countries also criminalize import, so the risk exists on both ends of the journey.

The domestic nuance

Even within Thailand, moving cannabis without proper documentation is risky. Patients with a valid prescription may carry limited amounts, reportedly up to 30 grams, including on domestic flights, but this depends on holding valid Thai medical documentation. Without it, carrying cannabis through airports is not safe, domestically or internationally.