Do you need a return flight ticket for a Thai visa application?

The requirement for a return ticket when applying for a visa in Thailand varies by visa type. For tourist visas, proof of a return flight is generally required, as many airlines enforce this rule before check-in. In contrast, long-term visas such as retirement or marriage visas do not require a return flight. Some travelers suggest purchasing a flexible ticket that can be canceled to meet this requirement temporarily. While there are conflicting reports about border policies, travelers emphasizing the current situation indicate it's best to check recent rules and guidelines before making travel plans.