Originally Posted by
BigE
This website says a 24-hour transit is fine, even with a domestic flight within china, so long as the total time in China is less than 24 hours.
https://www.travelchinaguide.com/emb...sa/transit.htm
Having said that, I'm not sure I'm brave enough to try it, unless I heard from others who have done it. Even if the rules are clear, it doesn't mean that airlines will let you on the plane to China.
While I haven't done it on an intra-China segment, it wasn't that difficult to transit from my HKG-PEK flight to a PEK-BKK. Might be a problem coming into the domestic terminal at PEK though.