Asiana, South Korea Star Alliance airline, has a low one-stop fare to Hong Kong at $654 round trip via their hub in Seoul ICN. Departure dates begin early September with about 12 dates in that month, then 5 days weekly at $654 from mid-October. Fri-Sat departures higher. In November fare drops to $630 to Dec 7. Fare returns in January through April at $630 or $654 round trip.
Frequent Flyer Miles: Tickets I checked booked in Asiana OZ Economy W class for JFK-ICN-HKG outbound flights and T class for inbound flights. Both Asiana T and W earn 50% redeemable miles per flight miles in United Mileage Plus and several other programs. JFK-ICN-HKG one way distance is 6,943 flight miles, so these round trip tickets earn at least 6,943 redeemable miles in most Star Alliance programs. That is the advantage of ticketing international flights through a foreign partner airline or an Online Travel Agency like Expedia. Unless you are elite with United Mileage Plus, a ticket through a partner airline or OTA will likely earn more redeemable miles in United Mileage Plus than the same ticket purchased as a United Airlines ticket.
Asiana Airlines website New York JFK – Seoul ICN – Hong Kong HKG
$653.72 round trip Sun Sep 4 – Mon Sep 12
Priceline website ticket New York JFK – Seoul ICN – Hong Kong HKG
$629.86 round trip Sun Feb 12 – Sun Feb 19