Originally Posted by
KMHT FF
Check that.
Visa requirements HKG vs. PEK are different and pose consideration for offloading pax.
Also, with alternative fuel minimums, if PRC airports are out, where are you going to land?
My understanding is that airlines avoid landing in PEK to refuel in case there are problems getting airborn again. I'm always opened to be corrected, but that's my understanding.
IIRC, I remember CX's favorite winter stops were ICN when running low on fuel due to headwinds.