What is the process for obtaining a re-entry permit at Suvarnabhumi Airport?

The process of obtaining a re-entry permit at Suvarnabhumi Airport is generally straightforward and takes about 10 to 15 minutes, depending on the number of people. The permit costs 1,200 baht (including service charges) and is located after the security check, before the immigration stamp. It is advisable to go to Immigration 2, which is situated at the center back of the terminal. While a passport photo is typically needed, it has been noted that they often take the photo on-site, so bringing one may not be necessary.