Will I go through immigration at Suvarnabhumi or Surat Thani for my flight from Vietnam?

@Christopher ******

i don't think you have enough time

go online n apply the TDAC arrival card it's free just to be safe.

Christopher Hicks

If your baggage gets checked through, and your flight to Surat Thani leaves from the same airport (BKK or DMK),

then you will ENTER Thailand at the airport at special Immigration booths in the TRANSIT AREA while you walk from the international arrival terminal, to the domestic terminal

And that’s the booth where to show the TDAC

In Surat Thani, it is only your baggage which still needs to pass through customs

*** in case your baggage doesn’t get checked through, you need to enter Thailand through the “normal” Immigration, pick up your baggage from the caroussell and check in to the domestic flight

2 hour is plenty of time.if you fly the same airline you can even ask to label your bagage to surathani .on arrival just follow the signs for domestic connecting flights ,it might not show surrathani ,but it is your gateway to your next flight .it is about 200 meter after the normal pasport control,still before pasport control .safe journey

You do the Tdac from Vietnam to Bangkok the next flight is internal no need for a tdac

Most probably you will go through immigration in Bangkok, because after that, it's a domestic flight that doesn't require the visa control.

I flew many times to Chiang Mai via Bangkok, and we always went through Immigration in BKK.

Check with the airline which airport you have to do immigration.