Seattle-Tacoma International Airport (SEA), is located in the city’s southern suburbs. Domestically it’s a major hub for Northwest and West Coast destinations, and internationally handles especially frequent trans-Pacific routes, as well as direct flights to the major European airports. The airport is about a 25 minute drive from downtown Seattle.
From China to Seattle:
From Beijing direct flight: Delta, Hainan; indirect flight: Korean Air, etc
From Hong Kong indirect: United, Delta etc
Suggested website: air flight own website, or http://www.bing.com/travel/?cid=homenav&FORM=Z9LH10