Fit to Fly Health Certificate for Travelers to Thailand

A ‘Fit to Fly’ Certificate, also called a Fit to Travel Letter is a medical certificate that confirms to airlines that you are in the conditions to fly. This document is currently required from everyone traveling to Thailand.

Fit to Fly Certificate is no longer needed!

Update 1 April 2021! For the travelers arriving to Thailand from 1 April 2021 Fit to Fly Certificate is no longer needed!

This new regulation was published in Royal Gazette on 31 March 2021 (click to see announcement, of course in Thai!)

Many embassies also stated that  " Non-Thai travellers no longer need to present a Fit to Fly Certificate at check-in. It is sufficient to present a Medical Certificate with a laboratory result indicating that COVID-19 is not detected, using RT-PCR method, issued no longer than 72 hours before departure (in addition to the COE, health insurance & ASQ confirmation). However, certain airlines may have a different internal policy; please double check required documents with your airlines. "

Due to the current COVID-19 pandemic, those who was flying to Thailand are required to present health certificate written by a doctor that confirms your fitness to fly. The health certificate must state that the passenger was "Fit to Fly".


You will also need health insurance covering COVID-19 for no less than 100,000 USD. AXA Sawasdee Thailand is an inbound travel insurance that meets all these requirements set by Thai government and was successfully used by thousands of travelers to enter Thailand. You can conveniently buy COVID-19 insurance online and get your insurance policy with COVID-19 certificate instantly.


A Fit to Fly Health Certificate must be issued no more than 72 hours before departure. If you travel with the flight on 22 November 2020, your fit-to-fly health certificate must be “issued” or “reported” on 19, 20 or 21 November 2020. 

Fit to Fly Health Certificate

Photo by Royal Thai Embassy, Jakarta

Additionally, everyone needs to present a letter, Certificate of Entry (COE) issued by Royal Thai Embassy or Thai Consulate certifying that they are flying home.

Having a "fit to fly" certificate is not enough for foreigners flying to Thailand as depending on the type of their purpose of traveling, they need to submit several other documents to Thai Embassy or Thai Consulate before traveling to Thailand. Current procedures of application process if you are planning to fly to Thailand are the following:

Non-Immigrant B Visa holders: How to Fly to Thailand with Work Permit (COVID-19)

Non-Immigrant O Visa holders: How to Fly to Thailand with Thai Family (COVID-19)

Another important thing you should be aware of when planning to travel to Thailand during COVID-19 is that foreigners must stay at one of Alternative State Quarantine (ASQ) or Alternative Local Quarantine (ALQ) for 14 days after entering the country.

Fit to Fly Health Certificate Form

There is no official form for a Fit-to-Fly Certificate. Some passengers on previous repatriation flights and Semi-Commercial Flights were denied boarding because they used forms that did not contain the word “FIT-TO-FLY” or “FIT-TO-TRAVEL”

This is the sample form of Fit to Fly Health Certificate from Royal Thai Embassy in Washington D.C. You can also click here to download (PDF) the same form on Thailand Department of Disease Control website.

Fit to Fly Health Certificate

Another example of Fit to Fly Certificate.

Fit to Fly Health Certificate

Fit-to-Fly Certificate vs. COVID-19-Free Certificate

Fit to Fly Health Certificate is a statement by a doctor that you are free from symptoms and fit to fly. While COVID-19-Free Certificate is the test result with a laboratory output indicating that COVID-19 is not detected. Both documents must be issued within 72 hours before departure.

Update 1 April 2021! While Fit to Fly Health Certificate is no longer needed starting from 1 April 2021, all foreigners traveling to Thailand still must have a COVID-19-Free Certificate issued within 72 hours before departure.

The COVID-19 test result and fit-to-fly health certificate must be two separate documents. It is your responsibility to present these two documents upon check-in with the airline and on your arrival in Thailand.

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