What is the immigration procedure for departing Thailand at the airport?

The immigration procedure for departing Thailand involves several key steps: checking in for your flight, passing through security screening, and then going through passport control (immigration) before boarding your aircraft. If you are leaving Thailand on a NON-ED visa, ensure that it is still valid at the time of departure. If you plan to return on the same visa, obtaining a re-entry permit is necessary; this can be done at your local immigration office or at the airport after security. It’s generally a straightforward process unless there are specific legal concerns like an overstayed visa.