Originally Posted by
ll_popcorn
Thanks a lot for your answers, that was very reassuring since I have never done an airport change during my flight before.
You could always ask to be changed to a ICN-PEK flight at check-in, or even at ICN, there are certainly enough of them per day that they aren't full
I find the Chinese carriers more flexible in this regards, so if you are flying one of them you can ask them at ICN before going out to GMP
If you are flying OZ or KE, don't expect it at all unless you misconnect.