Good day -
I applied for a covid extension last week and have an under consideration stamp. I am supposed to return to get the visa on the 10th. But now I have found a flight home that leaves at 9pm on the 10th. Can I just leave without doing anything? Do I need to go through security before 5pm or something like that? I don't care about an overstay fine of a day if that is the penalty but don't want any unexpected trouble. Thanks for any advice!
TLDR : Answer Summary
You can leave Thailand on the same day your 'under consideration' visa stamp expires, as long as you exit before 11:59 PM on that date. It is recommended to go through immigration by around 7 PM to ensure you catch your flight. Most immigration offices are lenient with those who are unable to travel due to COVID-19, allowing for a few extra days without penalties.