American and United have both suspended all of their flights to Hong Kong, citing a drop in demand. Delta stopped flying to Hong Kong in 2018.
United’s last flight to Hong Kong will depart from San Francisco tomorrow. American and United say they will resume flights on February 20th, but that seems pretty unlikely to me.
You can get a refund for all China or Hong Kong travel.
In the meantime, Cathay Pacific is still flying from Hong Kong to the US, though they too have closed sales on some routes, such as Newark-Hong Kong.
Did you have plans to travel to China or elsewhere in Asia? What are your thoughts on the Novel Coronavirus?