Under the new quarantine regulations approved by the Royal Thai Government, fully vaccinated foreign tourists visiting Phuket, Surat Thani, Phang-Nga, and Krabi via the relevant sandbox programmes can now stay for only seven days before being able to move on to other parts of Thailand.
As of October 1, 2021, the quarantine time for fully vaccinated international travellers arriving in Thailand, including the pilot reopening destinations through the Alternative Quarantine (AQ) system, will be reduced from 14 to seven days.
The reduced quarantine time applies to those visiting under the âSandboxâ programme to Phuket, Surat Thani (Ko Samui, Ko Pha-ngan, and Ko Tao), Phang-Nga (Khao Lak and Ko Yao), and Krabi (Ko Phi Phi, Ko Ngai and Railay Beach).
It also means that fully vaccinated tourists can now travel straight to the designated areas of Phang-Nga and Krabi upon landing in Phuket and stay there for seven days.
In addition, from October 1, 2021, onwards, Thailand has lifted the listing of countries per the level of COVID-19 transmission risks for Sandbox tourists. This means Thailand is now welcoming travellers from any country in the world to the âSandboxâ programme.
7-day Quarantine
For travellers who have been fully vaccinated with a vaccine approved by Thailandâs Ministry of Public Health (MoPH) or the World Health Organisation (WHO) no less than 14 days before their travel date, they are required to present the vaccine certificate (either the original or a printed copy) at the point of entry into Thailand.
During the quarantine, they are required to undergo two RT-PCR tests â first upon arrival on Day 0-1, and the second before finishing the quarantine period on Day 6-7.
10-day Quarantine
Travellers who have not been vaccinated, without a vaccine certificate, or partially vaccinated, and who arrive in Thailand by air will be required to enter a 10-day quarantine, and undergo two RT-PCR tests â first upon arrival on Day 0-1, and the second on Day 8-9.
14-day Quarantine
Travellers who have not been vaccinated, without a vaccine certificate, or partially vaccinated, and who arrive in Thailand by land will be required to enter a 14-day quarantine, and undergo two RT-PCR tests â first upon arrival on Day 0-1, and the second on Day 12-13.

In order to be eligible to enter Thailand, vaccinated international travellers still need to have all of their advance arrangements in good order for arrival and entry.
These include a valid visa or re-entry permit, a Certificate of Entry (COE) issued by the Royal Thai Embassy or Consulate, a COVID-19 health insurance policy, confirmation of Alternative Quarantine (AQ) hotel booking, and a medical certificate with an RT-PCR laboratory result indicating that COVID-19 is not detected issued no more than 72 hours before departure.