My nonimmigrant multi-entry O-A visa was approved November 8, 2024 and I used it to travel to Thailand from January 2 to end of April 2024. In order to enter Thailand again on the same visa must I enter Thailand by no later than November 7, 2024 or is it valid until January 1, 2025?
TLDR : Answer Summary
The nonimmigrant O-A visa is valid for entry into Thailand until the expiration date on the visa, which in this case is November 8, 2024. To maintain a year-long stay upon re-entry, you must enter Thailand on or before this date. Upon re-entry, as long as you have appropriate health insurance, you would typically receive a new entry stamp for an additional year.