A FlyerTalk Posting Legend
Join Date: Sep 2012
Location: SFO
Programs: AC SE MM, BA Gold, SQ Silver, Bonvoy Tit LTG, Hyatt Glob, HH Diamond
Posts: 44,321
When you get off the flight, show the agent your boarding pass and say you're turning right around, and ask them to let you into the departures area.
I've done that at YQM.