Hainan Airlines via DealBase discounts select round-trip flights to Asia, with prices starting from $317.60. That's tied with our mention from two weeks ago and the best price we could find for select routes on comparable 5-star carriers by $184.. Book this travel deal by November 30 for travel through the same date. Buy Now Tips On the DealBase landing page, click on "Hainan Air" in the top line to see this sale; we found lower fares within. On Hainan's sale page, you may have to click "Search Flights" under "Plan & Book" in the top banner to search for flights. We found this price on flights departing on October 3 from Los Angeles, CA (LAX) to Beijing, China (PEK), with return on October 10. All prices, dates, and booking details were valid at the time of publication.