Hainan Airlines has a low $499 round trip fare from San Jose, California SJC to Hong Kong HKG via Beijing PEK for departures in April to mid-May. Alaska Airlines Mileage Plan members earn 50% flight miles on Hainan booking code economy E for the transpacific flights.
Some $499 itineraries require an overnight in Beijing and others avoid this overnight connection.
Hainan Airlines San Jose SJC – Beijing PEK – Hong Kong HKG
$499.43 Saturday May 7 – Monday May 16