Thailand is tightening departure checks involving some Thai children travelling overseas, after authorities uncovered a large investigation into suspected false paternity and birth-registration arrangements. Families should allow extra time at the airport and carry documents that clearly show the child’s identity and relationship to the accompanying adult.
What has changed at departure immigration?
A notice from the international departure section at Suvarnabhumi Airport Immigration says Thai travellers under 18 should be ready to show a birth certificate when leaving Thailand. Immigration officers may accept the original, a copy or an electronic image, according to the notice reported on 4 August 2026.
Where a parental-consent document is required, the notice says it should be issued or certified by a government agency. The exact documents can depend on the child’s family and custody circumstances, so this should not be treated as a universal replacement for checking with the airport, immigration authorities and the airline.
Why are checks being tightened?
In a 27 October 2026 announcement, the Royal Thai Police said a joint operation with the Department of Provincial Administration had identified 1,483 suspicious cases connected with eight hospitals. Authorities said DNA checks in the latest phase confirmed 24 children whose recorded Thai father was not their biological father. The police announcement describes an investigation and arrests; it does not mean every mixed-nationality family or every Thai child is suspected of wrongdoing.
Practical checklist before travelling
- Carry the child’s passport and birth certificate, preferably the original plus a clear copy or electronic backup.
- If one parent is absent, or the child is travelling with another adult, check whether a government-issued or certified consent document is needed for that family’s circumstances.
- Bring supporting custody, name-change or relationship documents where relevant.
- Ask the airline about its own minor-travel rules. Unaccompanied-minor procedures can require advance notice and a separate airline form.
- Arrive early enough for document checks, especially for international departures from Suvarnabhumi.
This is a departure-document update, not a new visa category or a statement that a child will automatically be refused travel. Requirements can change and individual cases may be assessed differently. For broader context, see our Thailand Visa News archive and our recent guide on travel documents in Thailand.
Sources
Royal Thai Police announcement, 27 October 2026; Suvarnabhumi Departure Immigration source notice; Civil Aviation Authority of Thailand guidance on unaccompanied minors; ASEAN NOW report.
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