I have no idea but there is no charge for a one day overstay and no repercussions for the tiny stamp with a squiggle U get in your passport.

Why OA? The O visa is much less demanding when extending; no compulsory insurance.

@Thomas ******

there is no fine for one day

@Declan *********

I have done this many times over 17yrs to stay an extra day before my return flight. There is no fine for one day and you do not get a red stamp. Just a small square blue stamp with a squiggle and never had any consequences.

@Seb **********

Very delicate....like Brexit! So ironical that its turned out to be black not blue!

@John **********

Well that 2 hours will probably be taken up with a security check when you disembark followed by an identical security check before you board your 2nd flight. This was my experience when Gulf Air added in a 2nd stop at Singapore from BKK to London last April.. What made it more absurd was that the 2 security checks were at gates right next to each other separated only by a glass wall. And no staff told passengers not to bother putting their laptop, belt, wallet etc. away as they would need to take it all out again about 5 minutes later! And I thought that Thailand was the only SE Asian country lacking in logic....lol.

@Mark **************

U r welcome.

@Mark **************

They sell the 1-2-call SIM cards in 7-Eleven and othor places. But best to ask in an AIS shop about it and they will set it up for you.

49thb PAYG AIS sim gives u a promo with unlimited data (and free calls less than 15mins) 200thb per month for 6 months.