Thailand aviation authority’s announcement on International Flights
This notification shall be effective from 1 July B.E. 2563 (2020), 00:01 Thailand local time onwards.

This notification shall be effective from 1 July B.E. 2563 (2020), 00:01 Thailand local time onwards.
International flights are likely to resume as late as September, a top civilian aviation regulator said Wednesday.
The ban on commercial international flights might not be lifted on July 1 as originally planned and, if and when the ban is scrapped, business people will likely be the first to be allowed to travel, according to the Civil Aviation Authority of Thailand (CAAT).
The new public announcement does not mention insurance.
Travel Advisory from the Civil Aviation Authority of Thailand (CAAT) as of March 26, 2020
Below is the complete translation of the said order published on the Tourism Authority of Thailand (TAT) website.