Originally Posted by
Cathay Boy
I have been told by a Chinese ATC that Hong Kong, Macao, Shenzhen all uses ONE AIRWAY that all airplanes have to bottle neck through for in and out traffic.
That same airway is also used for flights between the following cities:
-Beijing, Taiyuan, Zhengzhou, Wuhan, Guangzhou
-plus, all of SE Asia
Whenever your PEK-HKG flight waits on the tarmac for an hour while other planes bypass you, it's usually not because of departure control at PEK or flow control at HKG, but because the airway itself is congested.