What should I do if my visa application for Thailand is not approved by my return flight date?

When applying for a visa while in Vietnam and considering your return flight to Thailand, it is advised to remain in Vietnam until you obtain the approval for your visa application. Several commenters shared that visa processing can take around 5 to 7 days, excluding weekends, and there is a possibility that you may be required to attend an interview in person. If your application requires additional information, it can also delay the process. Thus, leaving the country before receiving your visa may complicate re-entry. It’s suggested to stay until the visa outcome is known, or alternatively, to book a one-way ticket to allow for flexibility.