Good afternoon.
I am a U.S. citizen living in Chiang Mai on a Non-O visa based on retirement. I will (hopefully) fly from Chiang Mai to Seoul soon and will require a re-entry permit. Is it easy to obtain it at the Chiang Mai International Airport at around 11PM for my flight to Seoul or should I go to Chiang Mai Immigration and apply for it there?
If it is easy to obtain at the Chiang Mai International Airport -- what documents/pictures/THB do I need to bring with me? How long will it take? Where are the located?
Thank you, kind regards as always, Mark