Fly from either Washington DC-National or Washington DC-Dulles to Hong Kong for $554 roundtrip on Air Canada this fall or winter.
As an example, I found this price available departing IAD on Tuesday, September 10, returning from HKG on Tuesday, September 24, 2019.
Flights from IAD are available in September, departures from DCA available through November then again from mid-January through March 2020 at this price.
Travel on Mondays, Tuesdays, Wednesdays, and Thursdays. Some itineraries may have overnight layovers in a connecting city, which means you could depart on a Sunday as long as you cross the Pacific on a Monday.
Most itineraries will require two connections on one leg of the journey.
These fares include standard carry-on baggage and one piece of checked luggage.
Standard seat selection is included with these fares.
These are the lowest listed prices, you may find a fare on Air China for about $100 more that will only require one connection on both segments of the journey.
Need a hotel in Hong Kong? Here's what's available for the mentioned dates on Hotelwatchdog.