I was booked into basic economy through a consolidator, Justfly. It was strange, landing at Shanghai on the way to Chiangmai and on the return, coming from Kunming. In the first instance, it was a shorter walk to an area where, if you went left, you went through the transfer line. If you went right, you were in line for a 24 hour visa. I was directed to the right line and then pointed to the other line by the official in charge of granting 24 hour visas when I got to his booth. On the return to the U.S. at Shanghai airport, I've already described my long walk. Good to know that I don't have to do that again.