Unlike previous offers, this has no minimum stay and is available for April and for September to December 2016 bookings.
American – $556: Washington D.C. / Newark / Cleveland – Beijing / Shanghai, China. Roundtrip, including all Taxes
This will also earn you about 16,000 AAdvantage frequent-flyer miles, worth roughly $200, so the true cost is only about $400.
Book with a premium Chase credit card to get trip-delay protection. That would have served me well when I was once delayed on a Shanghai-to-USA flight due to a typhoon.