Originally Posted by
bibbju
Be aware that flights departing from mainland China airports are notorious for being delayed (due to the military strictly controlling China's airspace) so make sure you leave plenty of time between connections if you're not able to book your flights on the same PNR.
PEK-ULN is very different than PEK-SHA/CAN/SZX/HKG because there is very little traffic on that sector (in addition to PEK-ULN itself, there are only around 25 flights to Europe that use it.... v. ~200 in the PEK-HKG corridor). That having been said, getting a takeoff/landing slot in Beijing is a variable that applies to all flights.