@Stuart ********
Thanks for these observations. Flying to BKK from LA (seven or eight times) I am not aware that we’ve ever been asked for our return tickets. We’ve always had them. But now I’m slightly paranoid. The wrinkle for an upcoming flight is that our return is 36 days later than our entry because we want see more of the country. We’re advised by your colleague to get an extension at an Immigration Office. But if we can’t even get on the plane in LA, that’s a bit of a game-changer.