Title: CA $645 Cheap Flights from Washington (DCA) to Hong Kong (HKG) - Expedia.ca ![Wan Chai showing street scenes and a city](https://images.trvl-media.com/place/12123/a2f82a93-7176-4230-b30d-a6eb04b3a0ed.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $645 Cheap Flights from Washington (DCA) to Hong Kong (HKG) [View CA $645 flight on Mon, Mar 16, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:DCA,to:HKG,departure:16/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:644.84&airProductToken=AQqDAQoqCMGGARIEODc4MRhDIJjOASiz4ocDMJPjhwM4S0AAWAFyCEtMVlY4MVRHCisIwYYBEgMxMjcYmM4BILiNASjb6YcDMJbshwM4S0ABWAFyCEtMVlY4MVRHCigIwYYBEgE3GLiNASDHMijN8YcDMKT4hwM4S0ABWAFyCEtMVlY4MVRHEgoIAhABGAEqAkFDGAEiBAgBEAEoAigDKAQwAQ) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Ronald Reagan National Airport (DCA) to Hong Kong International Airport (HKG) - ![Cathay Pacific](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_CX.svg) Cathay Pacific [](https://www.expedia.ca/Flights-Search?leg1=from:dca,to:hkg,departure:22/10/2025TANYT&leg2=from:hkg,to:dca,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"CX"}}]) - ![Japan Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_JL.svg) Japan Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:dca,to:hkg,departure:22/10/2025TANYT&leg2=from:hkg,to:dca,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"JL"}}]) - ![British Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.ca/Flights-Search?leg1=from:dca,to:hkg,departure:22/10/2025TANYT&leg2=from:hkg,to:dca,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![All Nippon Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_NH.svg) All Nippon Airways [](https://www.expedia.ca/Flights-Search?leg1=from:dca,to:hkg,departure:22/10/2025TANYT&leg2=from:hkg,to:dca,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"NH"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:dca,to:hkg,departure:22/10/2025TANYT&leg2=from:hkg,to:dca,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:dca,to:hkg,departure:22/10/2025TANYT&leg2=from:hkg,to:dca,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![Korean Air](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KE.svg) Korean Air [](https://www.expedia.ca/Flights-Search?leg1=from:dca,to:hkg,departure:22/10/2025TANYT&leg2=from:hkg,to:dca,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KE"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from Washington (DCA) to Hong Kong (HKG) Prices were available within the past 7 days and start at CA $645 for one-way flights and CA $1,526 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, Mar 10 - Tue, Mar 17 DCA Washington HKG Hong Kong SAR CA $1,526 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:10/03/2026TANYT&leg2=from:HKG,to:DCA,departure:17/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1525.40&airProductToken=AQp4CiUIwaYBEgE1GEMgi7gBKIqghwMw3KKHAzhPQABYAXIGTkxVSlRaCiYIyrABEgExGIu4ASDzIyiaqIcDMIqvhwM4TkABWAFyBk5MVUpUWgonCMqwARIDMjMzGPMjIMcyKKCwhwMworGHAzhOQAFYAXIGTkxVSlRaCngKJwjKsAESAzIzNhjHMiDzIyiB7ocDMPTuhwM4TkAAWAFyBk5MVUpUWgomCMqwARIBMhjzIyCLuAEo7O-HAzCU9YcDOE5AAVgBcgZOTFVKVFoKJQjBpgESATYYi7gBIEMogf2HAzC3_4cDOE9AAVgBcgZOTFVKVFoSCggBEAEYASoCSFIYASIECAEQASgCKAMoBDAB) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Tue, Mar 10 - Tue, Mar 17 DCA Washington HKG Hong Kong SAR CA $1,547 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:10/03/2026TANYT&leg2=from:HKG,to:DCA,departure:17/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1546.84&airProductToken=AQqDAQoqCMGGARIEODc4MxhDIJjOASiUoIcDMPWghwM4TEAAWAFyCExMVlY4MVRHCisIwYYBEgMxMjcYmM4BILiNASibpocDMNaohwM4TEABWAFyCExMVlY4MVRHCigIwYYBEgE3GLiNASDHMiiNrocDMOS0hwM4TEABWAFyCExMVlY4MVRHEgoIAhABGAEqAkFDGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sun, Oct 19 - Thu, Oct 30 DCA Washington HKG Hong Kong SAR CA $1,550 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:19/10/2025TANYT&leg2=from:HKG,to:DCA,departure:30/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1549.30&airProductToken=AQptCjQI1YIBEgMzNjkYQyCycSi04foCMJHk-gI4TEAAWAFqCjFfYmFzaWNlY29yCExKVzAwRUJSCjUI1YIBEgM4NjkYsnEgxzIo6eX6AjDP7PoCOExAAFgBagoxX2Jhc2ljZWNvcghMSlcwMEVCUgqnAQo2CNWCARIDODIxGMcyIIu4ASj13vsCMO3k-wI4TEAAWAFqCjFfYmFzaWNlY29yCExKWDAwRUJSCjYI1YIBEgM0NDAYi7gBIK4cKJzm-wIwiOj7AjhMQABYAWoKMV9iYXNpY2Vjb3IITEpYMDBFQlIKNQjVggESBDEwNzcYrhwgQyi06PsCMKrp-wI4TEAAWAFqCjFfYmFzaWNlY29yCExKWDAwRUJSEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Tue, Mar 10 - Tue, Mar 17 DCA Washington HKG Hong Kong SAR CA $1,567 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:10/03/2026TANYT&leg2=from:HKG,to:DCA,departure:17/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1566.84&airProductToken=AQqDAQoqCMGGARIEODc4MRhDIJjOASjznocDMNOfhwM4TEAAWAFyCExMVlY4MVRHCisIwYYBEgMxMjcYmM4BILiNASibpocDMNaohwM4TEABWAFyCExMVlY4MVRHCigIwYYBEgE3GLiNASDHMiiNrocDMOS0hwM4TEABWAFyCExMVlY4MVRHEgoIAhABGAEqAkFDGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sun, Oct 19 - Thu, Oct 30 DCA Washington HKG Hong Kong SAR CA $1,573 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:19/10/2025TANYT&leg2=from:HKG,to:DCA,departure:30/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1572.30&airProductToken=AQqmAQo1CNWCARIEMTc4NRhDIIg4KP_l-gIwyuf6AjhMQABYAWoKMV9iYXNpY2Vjb3IITEpXMDBFQlIKNgjVggESBDIzODgYiDggsnEohuj6AjCA6voCOExAAFgBagoxX2Jhc2ljZWNvcghMSlcwMEVCUgo1CNWCARIDODc3GLJxIMcyKMbq-gIwrPH6AjhMQABYAWoKMV9iYXNpY2Vjb3IITEpXMDBFQlIKpgEKNQjVggESAzg3OBjHMiCycSjm3vsCMM_k-wI4TEAAWAFqCjFfYmFzaWNlY29yCExKWDAwRUJSCjYI1YIBEgQyMDk3GLJxIK4cKPTl-wIw-Of7AjhMQABYAWoKMV9iYXNpY2Vjb3IITEpYMDBFQlIKNQjVggESBDEwNzcYrhwgQyi06PsCMKrp-wI4TEAAWAFqCjFfYmFzaWNlY29yCExKWDAwRUJSEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sun, Oct 19 - Thu, Oct 30 DCA Washington HKG Hong Kong SAR CA $1,585 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:19/10/2025TANYT&leg2=from:HKG,to:DCA,departure:30/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1584.30&airProductToken=AQpVCigI1YIBEgM2OTkYQyCycSjH5voCMKjp-gI4U0AAWAFyCFNKWDAwRUJSCikI1YIBEgM4NjkYsnEgxzIoifH6AjDv9_oCOFNAAVgBcghTSlgwMEVCUgpWCikI1YIBEgM4NjIYxzIgsnEom9n7AjCE3_sCOExAAFgBcghMSlgwMEVCUgopCNWCARIEMjM4NhiycSBDKNDh-wIwh-T7AjhMQAFYAXIITEpYMDBFQlISCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Tue, Mar 10 - Tue, Mar 17 DCA Washington HKG Hong Kong SAR CA $1,586 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:10/03/2026TANYT&leg2=from:HKG,to:DCA,departure:17/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1585.84&airProductToken=AQqDAQoqCMGGARIEODc4NxhDIJjOASi6pIcDMJulhwM4TEAAWAFyCExMVlY4MVRHCisIwYYBEgMxMjcYmM4BILiNASibpocDMNaohwM4TEABWAFyCExMVlY4MVRHCigIwYYBEgE3GLiNASDHMiiNrocDMOS0hwM4TEABWAFyCExMVlY4MVRHEgoIAhABGAEqAkFDGAEiBAgBEAEoAigDKAQwAQ) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Oct 22 - Wed, Oct 29 DCA Washington HKG Hong Kong SAR CA $1,621 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:22/10/2025TANYT&leg2=from:HKG,to:DCA,departure:29/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1620.70&airProductToken=AQpWCikIwYIBEgQyMDIzGEMgrhwo_4T7AjD_hfsCOE5AAFgBcghOSzIxVVNJUgopCMOwARIDODAxGK4cIMcyKOyH-wIwoo_7AjhOQAFYAXIITksyMVVTSVIKVQopCMOwARIDODA2GMcyIK4cKPPO-wIwz9X7AjhOQABYAXIITksyMVVTSVIKKAjBggESAzg4OBiuHCBDKI_Y-wIwh9n7AjhOQAFYAXIITksyMVVTSVISCggBEAEYASoCQ1gYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, Oct 22 - Wed, Oct 29 DCA Washington HKG Hong Kong SAR CA $1,642 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:22/10/2025TANYT&leg2=from:HKG,to:DCA,departure:29/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1641.10&airProductToken=AQp6CiYIwaYBEgEzGEMgkgEo74f7AjDSivsCOFZAAFgBcghWSDRFQVZNTgonCM-0ARIDMjcxGJIBIMhoKJuT-wIw15j7AjhXQAFYAXIGV0xYVVNaCicIz7QBEgM3MjEYyGggxzIo4J_7AjC8ofsCOEtAAVgBcgZXTFhVU1oKfAonCM-0ARIDNzQ2GMcyIMhoKKjJ-wIw8Mr7AjhLQABYAXIGV0xYVVNaCigIz7QBEgMyMDIYyGggi7gBKLzO-wIw2tP7AjhXQAFYAXIGV0xYVVNaCicIwaYBEgE2GIu4ASBDKNHV-wIwgNj7AjhPQAFYAXIIT0gyRVhVTU4SCggBEAEYASoCT1oYASIECAEQASgCKAMoBDAB) ![Cathay Pacific](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/CX.gif) Wed, Oct 22 - Wed, Oct 29 DCA Washington HKG Hong Kong SAR CA $1,675 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:HKG,departure:22/10/2025TANYT&leg2=from:HKG,to:DCA,departure:29/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1674.90&airProductToken=AQpWCikIw7ABEgQ3NTk4GEMgrhwo34X7AjDjhvsCOE5AAFgBcghOSzIxVVNJUgopCMOwARIDODAxGK4cIMcyKOyH-wIwoo_7AjhOQAFYAXIITksyMVVTSVIKVgopCMOwARIDODA2GMcyIK4cKPPO-wIwz9X7AjhOQABYAXIITksyMVVTSVIKKQjDsAESBDc1NzMYrhwgQyib1_sCMJDY-wI4TkABWAFyCE5LMjFVU0lSEgoIARABGAEqAkNYGAEiBAgBEAEoAigDKAQwAQ) ## Alternative airports near Chek Lap Kok Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.ca/Flights-Search?leg1=from:DCA,to:HKG,departure:22/10/2025TANYT&leg2=from:HKG,to:DCA,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) HKG Hong Kong Intl. Cheapest [Flights from CA $1,621](https://www.expedia.ca/Flights-Search?leg1=from:DCA,to:HKG,departure:22/10/2025TANYT&leg2=from:HKG,to:DCA,departure:29/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Frequently asked questions ### How much is a flight from National Airport to HKG? > Round-trip tickets from Ronald Reagan Washington National Airport (DCA) to HKG start from CA $1,526. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Ronald Reagan Washington National Airport (DCA) to Chek Lap Kok Intl. Airport? > The majority of flights can be cancelled online, but every airline has its own terms and conditions. If you do need to cancel your flight, visit our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Ronald Reagan Washington National Airport (DCA) to HKG that have flexible change policies? > Many airlines will allow you to move your flight without charging a fee. All you pay is the difference in the ticket price. When looking for DCA to Chek Lap Kok Intl. Airport flights, you'll find a "No change fees" box for you to tick. ### How many hours is the flight from National Airport to Chek Lap Kok Intl. Airport? > Make the 21 hours and 56 minutes between DCA and Chek Lap Kok Intl. Airport as comfortable as you can. Pack the essentials, like toiletries, your toothbrush and a neck pillow, and simply enjoy the flight! ### How far is the flight from National Airport to Hong Kong Intl. Airport (HKG)? > With a flight distance of 13,100 kilometres from Ronald Reagan Washington National Airport (DCA) (DCA) to Hong Kong Intl. Airport (HKG) (HKG), this is a long trip. Be sure to keep well hydrated and take a short walk down the aisle every now and then. ### Which airlines fly direct from DCA to Chek Lap Kok Intl. Airport? > You won't find any airlines operating directly between Ronald Reagan Washington National Airport (DCA) and Chek Lap Kok Intl. Airport, so be ready to make at least one stop on your journey. A layover can be a nice way to break up a trip! ### Are Ronald Reagan Washington National Airport (DCA) to Hong Kong Intl. Airport (HKG) flight tickets cheaper when they're purchased at the last minute? > Booking last minute from Ronald Reagan Washington National Airport (DCA) to Chek Lap Kok Intl. Airport can be hit-or-miss. You may be able to score a great bargain, but then again, you could miss out altogether! If you'd prefer to start your trip planning ahead of time, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines release their prices so far in advance. Our top tip? Check back often as updates are made frequently. ## Travel information | Origin airport | Ronald Reagan Washington National | | --- | --- | | Destination airport | Hong Kong Intl. | | Roundtrip price | CA $1,525 | | Distance | 13041 km | ## Book with confidence ### Washington to Chek Lap Kok Flights **The easy way to book your flights from Washington to Hong Kong**  With Expedia, it’s simple to find and book flights to Hong Kong from Washington whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Hong Kong Intl., too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Washington to Hong Kong today, tomorrow, or this week.   **Save dollars with cheap flights from Ronald Reagan Washington National, DCA to Hong Kong Intl., HKG**  Sort your search results by price to find great deals on your flight from Washington to Hong Kong—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Hong Kong from Washington currently is just CA $1,526 rising to CA $1,675.   Here are more money-saving tips:  - Fly in March when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Hong Kong   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Hong Kong from Washington**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. 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