Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from Washington DC Washington Dulles International Airport to Hong Kong, across the zero airlines that offer this route.
If you can't find a flight time that suits you, why not look at flying out from a different airport?
You can view all flight times yourself in the results list.
Searching by month, for instance, will show you the best time of the week to fly.