What does immigration check when entering BKK? I am coming on a tourist visa but only want to get a one way ticket as I am converting to a marriage visa after I arrive. I am thinking about getting a round trip ticket for the eVisa app and I then cancelling it within 24 hrs and then buying a one way ticket for the trip. Will it work?
TLDR : Answer Summary
When entering Thailand on a tourist visa, immigration checks may require proof of onward travel, particularly from the airline during check-in, rather than directly at the immigration desk. Passengers are advised to have a return or onward travel ticket ready, or a cheap ticket to a neighboring country as a precaution. Some travelers report never being asked for documentation at immigration, while others had to show proof only during their initial flight check-in.