Entry procedures for non-Thai nationals who are eligible to enter the Kingdom of Thailand:

Step 1: Please check whether the applicant has already acquired a valid visa.
            1.1 If the eligible applicant does not have a valid visa, please proceed to step 2.
            1.2 If the eligible applicant has a valid visa, please skip to step 5.

Step 2: Applicant books the date to submit the required documents for visa via the link: https://forms.gle/eFVABMvHS92iRY737

Step 3: Applicant submits the following documents at the Embassy’s visa section on an appointment date that is booked via the link in step 2:
            3.1 A valid passport;
            3.2 A health insurance policy covering treatment and medical expenses related to COVID-19 with a minimum coverage of
USD 100,000 or equivalent in other currencies. The insurance must cover the entire duration of stay in Thailand;
            3.3 A copy of the Declaration Form completely filled-in and signed;
            3.4 A visa application form completely filled-in and signed; and
            3.5 Additional required documents for each type of visa application.

- Please check the list of 9 categories of non-Thai nationals that are eligible to enter the Kingdom of Thailand and the full list of required documents for each type of visa application at https://seoul.thaiembassy.org/en/index

Step 4: Applicant picks up visa and instruction on how to apply for an online COE at the Embassy’s visa section on the appointment date.

Step 5: Applicant applies for an online COE via https://coethailand.mfa.go.th 

             5.1 Applicant registers for COE application by filling in personal details and uploading supporting documents.
             5.2 Applicant who has been pre-approved can book
                   5.2.1 Semi-commercial flight ticket (please contact the airline directly); and
                   5.2.2 Alternative State Quarantine (ASQ) or Alternative Local Quarantine (ALQ) only in Chonburi and Prachinburi for a period of                                full 14 days counting from the date of arrival. (List of ASQ/ALQ facilities can be found at http://hsscovid.com)

             5.3 Applicant uploads a copy of an e-ticket and a copy of confirmed reservation of ASQ or ALQ online.

             5.4 When the COE has been approved, applicant can download and print out the online COE.

Step 6: Applicant is required to present the following documents at the port of the embarkation and upon entry into the Kingdom of Thailand:
            6.1 A COE;
            6.2 A health insurance policy covering treatment and medical expenses related to COVID-19 with a minimum coverage
of USD 100,000.- (or equivalent in other currencies);
            6.3 A medical certificate with RT-PCR laboratory result indicating that COVID-19 is not detected, issued no more than 72 hours before travelling; and
            6.4 A Fit to Fly / Fit to Travel health certificate.

More Information at https://seoul.thaiembassy.org/en/publicservice/entry-procedure-to-thailand-as-of-17-dec-2020?page=5fa4ac18af46ee3780556b72&menu=5fa4b2b321ace90bbc52e372