What should I do if my retirement visa is expiring and I can't return to Thailand due to flight restrictions?

Your fine until July 31 (unless they extend ) .

okay, this is how it works

The amnesty they have until July 31st is for people INSIDE the country right now and doesn't have anything to do with you applying for your new year retirement extension.

IF you are outside the country and you can't get back before your extension expires you're done, <- meaning that extension expires and you hav no extension anymore.

You would need to start all over from scratch, either getting a new visa from a thai consulate BEFORE you come here or comin' here and then applying for the 90 day non-O visa and year extension once you get back.

One last time the amnesty does NOT affect people who are out of the country at this time

Where are you right now?

If you can meet the requirements you should be able to get a 1yr extension but it would require money already in the bank (800k 2 months prior to the date of application).

If you are not in Thailand at the moment you will need to apply for a new Visa and I dint think any embassies are issuing at this time. Looks like you will have to wait several months to return to Thailand I'm afraid.

All foreigners have been given an amnesty until 31st of july. By then the international flights should resume.