Originally Posted by
lsquare
So here are the timings to think about. Not sure what I can really do. The fare that I'm looking at have me arriving in Beijing at 4 AM and it departs Beijing at 12:30 PM. That's an 8.5 hour layover.
While this timing is rather awkward, you could conceivably squeeze in either Mutianyu or Tiananmen/Forbidden City. The latter is probably a little more practical.
Then when going home, I'll have a 5h25m layover; arriving in Beijing at 6:25 PM and departing at 11:30 PM.
For this layover, I would advise against going too far from the airport. 798 or the Lido area could work. There are also some decent restaurants/bars in Shunyi that are only 10 minutes away from PEK.