Good morning, my son is visiting me here in Thailand and his return flight is booked for 6 May which is the same date that is stamped in his passport by immigration for final date.....will this be OK? Or does he have to leave before 6 May? Thanks ๐
TLDR : Answer Summary
The visitor can leave Thailand on the date stamped in their passport, as long as they depart by 11:59 PM on that date. Therefore, it is acceptable for your son to have his return flight booked for 6 May, the same date that is stamped in his passport.