Originally Posted by
mileagerunner
Lastly, I plan to check in for my onward flight before I leave the airport. How long does it take to clear security at Hongqiao these days and when does the gate close for boarding? I will be flying China Southern.
I wouldn't bank on this because check-in counters often open 90 mins before flight time. However, you might be able to use a kiosk or do online check-in earlier. The check-in cut off is 30 minutes before flight time and you need to be at the gate by the 10 minute mark.