Hainan Air via DealBase discounts select Hainan Air Roundtrip Flights to China from select cities in the U.S., with prices starting from $477.63. (On the DealBase landing page, click on "Hainan Air" in the top line to see this sale; on Hainan's sale page, you may have click "Plan & Book" in the top banner to search for flights.) That's the lowest price we could find for select routes today by at least $217, although we saw fares for $20 less last month. This price is valid on flights departing on September 18 from Seattle, WA, (SEA), with arrival in Shanghai, China, (PVG) and return on September 27. This sale includes routes from Boston, MA, (BOS); Seattle, WA, (SEA); Chicago, IL, (ORD); and more. Book this travel deal by July 31 for departure through October 31.

All prices, dates, and booking details were valid at the time of publication.