@Shanti ****

there are no more flights out of o Samui at this point, because Bangkok Airways has discontinued their service. You might be able to travel to Bangkok by VIP bus (Ferry & Bus) and Bangkok airport is still open and serving US routes

can one enter back into Thailand from Cambodia by land border Poi Pet ? Does one need to have the "small" medical "fit-for-walk" letter OR the "big" certificate stating one has completed a Covid19 test and is negative? Or is the border "factually" closed for foreigners?

@Sarah ********

please tell us about the outcome. It could be of great help for other people

so we have to wait. But for

@Sarah ********

it is advised that she travels by land, as she will not be able to fly to Bangkok from Luang Prabang . she could however try to check-in. If she gets checked in, everything is fine! She can still ask at the airport if her airline will check her in with the "small" medical cert. If negative, she knows her route will be over land

you could of course also take the boat ride back to Chiang Kong and cross into Thailand there in Ban Huayxxai

@Benjamin *****

thinks that it is possible to cross over a land border into Thailand with the simple medical letter you already have. The "Covid19-free Certificate" is just for air travel, he says and is absolutely sure about that. So your situation demands a different approach: As you will not be able to achive such a certificate in a timely manner, just don't fly out to Bangkok, but get a bus from Luang Prabang to Vientiane (or a longtail boat!) and cross the land border into Thailand at Nong Khai. You will receive a new 30-days visa exempt entry stamp, allowing you a smooth stay in Thailand until your return flight to Germany

in theory . ."a flight from Myanmar back to the UK" . . sounds fair and easy in these times . .

you say foreigners don't need a medical or a covid19-free certificate if they want to enter Thailand by a land border? Do you have any reports from people who will have done this after midnight today . .oops sorry . .we have to await such reports. Can I borrow your crystal ball ?

here is the proof that he will NOT be able to return to Thailand from either Vietnam or Myanmar:

O Gorman Trevor . thank you. This adds insult to injury . . .