1

Overstaying by 1 day is generally forgiven if you reach the airport.

Each day of overstay will result in a 500 baht fine if you reach the airport.

So, 2 days will result in a fine of 1,000 baht if you reach the airport.

You may have noticed that the last 3 sentences contained "if you reach the airport". The consequences of being caught on an overstay aren't likely to be pretty if you DON'T reach the airport! You are looking a trip to IDC and a deportation. Although I haven't been through the process, I don't think it is fun. Google is your friend.

Quite frankly, it isn't worth the risk. It reflects poor planning and a very disrespectful attitude towards the regulations and laws that govern Thailand. Furthermore, the implications for getting visas to other countries could be substantial. Your passport will clearly be marked with an overstay stamp which can prevent you from traveling to some countries.

In short, extend your stay or plan in accordance with the regulations put in place by getting a visa appropriate for your length of stay. Nobody is going to shed any tears should you get sent to IDC except for your family, loved ones, and possibly yourself. Don't be foolish or naive about it.

2

It reflects poor planning and a very disrespectful attitude towards the regulations and laws that govern Thailand.
Thats not the case of the traveller when airlines can and do at the last minute change flight times and days!!
Your passport will clearly be marked with an overstay stamp
Mine you cant tell it from any others.

3

^^ Thats not the case of the traveller when airlines can and do at the last minute change flight times and days!!
I hardly think that is applicable to the OP, and in that event one only needs to head to immigration to extend the visa/ permit to stay.

if you reach the airport
What LT said. Do you feel lucky?.

4

Thanks to everyone for their replies.
Believe me, I certainly meant no disrespect to anyone or anything ! Just wanted to know if there were consequences - We're not talking about staying in the country illegally for weeks on end here.
Anyway - Now I know and a visa it will be ;-)

5

Just curious, but would you consider overstaying if it was the US or UK etc that you were visiting?

6

Having travelled for the last 35 years and never yet overstayed a visa, the question is pretty irrelevant.

7

^^ But, you must have been considering doing that in LOS to come on here and ask about "consequences".
So my question is relevant.
However, I was curious because we get quite a few asking about it, and wondering if LOS has a reputation that it's OK to break immigration law here.

8

Sorry - LOS ?

Concerning your question about US and UK - I'm afraid I don't know how long a visa is valid for in USA - I have never wanted to go for longer than 4 weeks. Asia is where we spend most of our time and whenever we've gone for longer periods 5-8 weeks, where necessary we have got the relevant visas. We've never been in the position where the holiday lasts only one day longer than the visa. Therefore the question.
Anyway, problem has been solved. We've decided to fly via Bangkok to Langkawi, spend a few days there and then island hop back up through Thailand.

ps. We have British nationality so UK is not a problem.

9

LOS= Land of Smiles= Thailand.

10

Aaah - Thanks !