well I’ve been several times with either visa exempt or a 60 day visa always staying for 90 days and always having a return ticked for the full period flying either Qatar or Finair, never a problem , maybe I was just lucky.
The ask:thailand community, consisting of multiple Q/A groups with over 100,000 members, powers this platform. It is not an official government resource. Our members actively contribute to this resource, and while we strive for accuracy, we cannot guarantee its complete reliability. Assistance to travelers is provided as a community service.