The easiest way to find out is to go to United.com and do a few of booking searches for in the next a few months, and you should have the answer promptly.

Alternatively, wait for other FTers who have free time on their hand to do those searches for you.

Traffics to China are down big time. I heard an AA ORD-PVG flight only had 12 passengers on board last year, although it was during Chinese New Year.