What should I do if my Thai visa expires before my departure flight?

Arrived at Suvarnabhumi on Sunday at 23:30.

All good, but man infrastructure of us had overstays in his passport.

He was taken to a back room.

go to Laos stay 5 days then come back to Thailand, Not exactly rocket science. Last thing you want on your passport is overstay stamps.

never go into overstay

The best option is apply for a visa extension or fly before the 25th

apply for a second extension, it will get rejected but they will give you 7 more days to sort out your affairs in the country before leaving. at least they did with me 8 or 9 years ago.

What visa do you have,there maybe another answer

Ugh, why, why, why do people continue to do this? Do you not look at a calendar when planning your trip and booking your flights? We'll, there's a lot of good advise here, pay attention to it. DO NOT overstay if You ever want to come back. ANY overstay will get You flagged in the system. Have You looked into just changing Your flight?

Do not take the extension. Just go to visit any country now for about a week, then return on another 60 visa exempt entry. That puts you past your flight date. When you develop a pattern of being an actual tourist, visiting other countries around Thailand, you don't set off red flags with immigration. Taking the 30 day extension, and leaving the country, and coming back right before it all expires, sets off immigration for special attention, as you are setting a pattern of trying to stay here long term on visa exempt entries. Go visit another country now, and it looks like you are an actual tourist, and that is good. If you met someone you don't want to be away from take them with.

If you consider to leave the county anyway, you may could do this soon and come back on visa exempt for 60 days. But you have to check the Royal Gazette to return before the visa exempt will be reduced to 30 days. Keep in mind that the immigration may ask you for the 20k THB and an onward ticket.

Get the 30 day extension and an chance your flight to the date your extension finishes.

Never overstay !!!!

The bigger thing is not the fine or the black mark .

The big thing is if you get checked. for any reason...off to immigration prison ,you won't like it much

Either leave before your 30 days extension is up and return visa exempt on the day of your flight home or go for another extension at the end of your 30 day extension with your exit flight detail and get the extension denied 7 days to leave Thailand stamp for 1900B. Never overstay.

Don't even consider overstaying incredibly bad Idea

Phnom Penh is a pretty short flight. Bali is a little longer and a bit nicer.

Get the 30 day extension. If that doesn’t cover you, go back and get the 7 day get out of Thailand extension. It also costs 1900฿. Do anything and everything to not overstay.

You're are better option you need to leave the country before your 30 day extension is up you don't want to be fine for staying over on your Visa

If apply extension its 1900 baht for 30 days. Doesnt matter you use 1 or 30 days same cost.

I would never go overstay now risks are too high