Hainan Airlines, one of Skytrax's certified 5 out of 5 stars rated for World's Best Airlines and Delta Airlines have round trip airfares travelling from Seattle (SEA) to Beijing China (PEK) for $489, nonstop!
Please note: there are slightly cheaper flights with Air Canada and China Eastern but the Air Canada flights will make 1 stop.
Departs SEA: Sept 26-27; Oct 2, 17-18, 22-25, 30-31; Nov 1, 5-8, 12-15, 19-22, 26-29; Dec 3-5
Returns: Monday thru Thursdays thru December 27th, wide and great availability.
Use dates and book it with your favorite and reputable OTA such as Expedia [expedia.com]
, Oribitz [orbitz.com]
, Travelocity [travelocity.com]
or Priceline [priceline.com]
. Bundling hotel with airfare will save money.
Beijing Travel Guide [travelchinaguide.com]