Chances are I am going to have to overstay for two days on my 30-day visa exemption stamp. After those two days I am going to fly out of Suvarnabhumi to my home country.

A couple of questions:

1. Is immigration at Suvarnabhumi still lenient towards a 2-day overstay, i.e. will I get away by paying the 1000 Baht fine?

2. I suppose my passport will get marked. Will this have consequences for future visits? 

3. Would it more advisable to do a border run, e.g. at Chiang Khong?

Thanks

You could apply for a 30 day extension instead of overstaying.

1. Just pay the 1000 baht fine.

2. You will get a overstay stamp showing the fine paid and the number of days you overstayed. Normally not for a short overstay.

3. Getting an extension would be better.

When I was working (and using 30 Day stamps for my holidays) I was routinely 1-2 days over the allotted 30. Sometimes 3 days even.

Never had a problem. Paid the fine (if applicable) and all they did was stick a copy of the receipt in my passport and make a note in a hand-written ledger. Nothing stamped (beyond the normal exit stamp) and never a hassle on the next trip back.

 

Probably did that 5-6 times (at least) over a 3 year period before I finally got a "1 Year" Visa. 

Legally you should get an extension (1,900 baht). Doing a border run would give you another 30 days (presumably) but also (presumably) cost more.

 

Given their recent attitude-shift on overstays, I would go to the trouble of getting the extension. 

I deliberately had short overstays a few times years ago. I would strongly advise against doing that now, especially if you have spent or expect to spend long periods here. The attitude towards long stay foreigners, even those with money, is much different from in the past. Some officials can, and will, use any recent overstays as part of a justification to give you grief. Get an extension of stay (or a border hop for a visa exempt entry as a second choice).

Never been a problem for me. I've had multiple 1-4 day overstays in the same passport and it was never mentioned anywhere by anyone. Not when applying for new visas, new extensions, not when going through immigration and not when doing it again and getting another overstay fine. 

Penang refuses to issue a visa with an overstay stamp nowadays.

Overstayed 1 day last November (2017).

Immigration at Chiang mai airport made a big hullabaloo, got me sign an official report and put an overstay stamp in my passport.

Came back to Thailand (Don Muang) this November, Immigration saw the stamp, ignored it and stamped my passport 30 days as usual.

Probably depends on who you get, but I don't think I'd risk it.

As one post said it’s better to get an extension now their serious 

about infractions and you never know when the hammer will fall

and you might be part of the statistics.....