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$402+ Cheap flights from Washington, D.C. (WAS) to Hong Kong

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — HKG
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Hong Kong are usually found in February or September, booked 18 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

Cheap flight deals from Washington, D.C. to Hong Kong

Keep the following information in mind while searching for Washington, D.C. to Hong Kong flight deals. Data was last updated August 18, 2025.

Round-trip from

$764
(Air Canada)

One-way from

$402
(Air Canada)

Popular in

December

Cheapest in

February

Average price

$1,379
From Washington, D.C. (WAS) to Hong Kong
Search Deals
One-way flight from Washington, D.C. (WAS) to Hong Kong
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($123 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Washington, D.C. to Hong Kong

Cheapest flights from Washington, D.C. to Hong Kong
Explore the most affordable flight options available from Washington, D.C. to Hong Kong. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Air Canada deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/189:40 amDCA - HKG
2 stops42h 25mAir Canada
Thu 9/256:00 pmHKG - DCA
2 stops28h 20mAir Canada
Deal found 8/16$764
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:10 pmDCA - HKG
2 stops37h 30mAir Canada
Sat 11/1510:00 amHKG - DCA
2 stops24h 56mAir Canada
Deal found 8/17$768
This Expedia deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/189:20 pmDCA - HKG
2 stops32h 20mAir Canada
Mon 12/810:00 amHKG - DCA
2 stops24h 56mAir Canada
Deal found 8/16$771
This Air Canada deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:37 pmIAD - HKG
2 stops34h 28mAir Canada
Thu 9/256:00 pmHKG - IAD
2 stops27h 38mAir Canada
Deal found 8/18$771
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/148:40 pmDCA - HKG
2 stops38h 05mAir Canada
Sun 9/216:00 pmHKG - DCA
2 stops33h 51mAir Canada
Deal found 8/17$784
This Air Canada deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/284:35 pmDCA - HKG
2 stops37h 05mAir Canada
Mon 12/18:25 pmHKG - DCA
2 stops38h 31mAir Canada
Deal found 8/16$786
This Air Canada deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/111:00 amDCA - HKG
2 stops29h 35mAir Canada
Tue 9/166:00 pmHKG - DCA
2 stops33h 51mAir Canada
Deal found 8/16$793
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/285:15 pmIAD - HKG
2 stops36h 25mAir Canada
Mon 12/18:25 pmHKG - IAD
2 stops37h 34mAir Canada
Deal found 8/17$793
This Air Canada deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/45:15 pmIAD - HKG
2 stops36h 25mMultiple Airlines
Tue 12/910:00 amHKG - IAD
3 stops23h 59mMultiple Airlines
Deal found 8/15$796
This Expedia deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:40 amDCA - HKG
2 stops24h 10mMultiple Airlines
Sun 12/74:25 pmHKG - DCA
2 stops41h 15mMultiple Airlines
Deal found 8/16$797
This Air Canada deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:35 amIAD - HKG
2 stops25h 10mAir Canada
Tue 12/28:25 pmHKG - IAD
2 stops37h 34mAir Canada
Deal found 8/16$799
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:00 pmIAD - HKG
1 stop24h 45mAir China
Mon 12/12:35 pmHKG - IAD
1 stop40h 55mAir China
Deal found 8/18$800

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Hong Kong that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Hong Kong that are best for you.

Fly from

Washington, D.C.

Fly to

Hong Kong

Route

Depart

Return

Price

Washington, D.C.Hong Kong

DCA - HKG

DCAHKG

Washington, D.C. Reagan-National

Thu 9/18

9:40 am-4:05 pm

2 stops42h 25m

Hong Kong Intl

Thu 9/25

6:00 pm-3:51 pm

2 stops33h 51m

$764

Washington, D.C.Hong Kong

DCA - HKG

DCAHKG

Washington, D.C. Reagan-National

Thu 1/1

4:10 pm-6:40 pm

2 stops37h 30m

Hong Kong Intl

Tue 1/20

8:25 pm-9:56 pm

2 stops38h 31m

$764

Washington, D.C.Hong Kong

DCA - HKG

DCAHKG

Washington, D.C. Reagan-National

Mon 11/24

11:05 am-6:40 pm

2 stops42h 35m

Hong Kong Intl

Fri 12/26

8:25 pm-9:56 pm

2 stops38h 31m

$764

Washington, D.C.Hong Kong

DCA - HKG

DCAHKG

Washington, D.C. Reagan-National

Wed 11/5

4:10 pm-6:40 pm

2 stops37h 30m

Hong Kong Intl

Sat 11/15

10:00 am-9:56 pm

2 stops24h 56m

$768

Washington, D.C.Hong Kong

DCA - HKG

DCAHKG

Washington, D.C. Reagan-National

Sun 9/14

8:40 pm-10:45 pm

2 stops38h 05m

Hong Kong Intl

Sun 9/21

6:00 pm-3:51 pm

2 stops33h 51m

$784

Washington, D.C.Hong Kong

DCA - HKG

DCAHKG

Washington, D.C. Reagan-National

Tue 10/28

4:35 pm-5:40 pm

2 stops37h 05m

Hong Kong Intl

Mon 12/1

8:25 pm-9:56 pm

2 stops38h 31m

$786

Washington, D.C.Hong Kong

DCA - HKG

DCAHKG

Washington, D.C. Reagan-National

Tue 11/4

4:10 pm-6:40 pm

2 stops37h 30m

Hong Kong Intl

Wed 11/19

8:25 pm-9:56 pm

2 stops38h 31m

$786

Washington, D.C.Hong Kong

DCA - HKG

DCAHKG

Washington, D.C. Reagan-National

Mon 11/3

4:10 pm-6:40 pm

2 stops37h 30m

Hong Kong Intl

Thu 11/27

8:25 pm-9:56 pm

2 stops38h 31m

$786

Washington, D.C.Hong Kong

DCA - HKG

DCAHKG

Washington, D.C. Reagan-National

Thu 11/27

9:40 am-10:50 pm

2 stops24h 10m

Hong Kong Intl

Sun 12/7

4:25 pm-8:40 pm

2 stops41h 15m

$797

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Tue 10/28

11:00 pm-11:45 am

1 stop24h 45m

Hong Kong Intl

Mon 12/1

2:35 pm-6:30 pm

1 stop40h 55m

$800

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 53 results
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Best time to book a flight from Washington, D.C. to Hong Kong

Have a flexible travel schedule? Discover the best time to fly to Hong Kong from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Hong Kong

How far ahead should I book a flight from Washington, D.C. to Hong Kong?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Hong Kong. Price data was last updated on August 8, 2025.

The best time to book flights from Washington, D.C. to Hong Kong is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Hong Kong?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Hong Kong (average of $949). Flying from Washington, D.C. to Hong Kong in December is currently the most expensive (average of $1,629). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to HK?

Find hourly flight availability from Washington, D.C. to Hong Kong. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

One of the essential ways to save on airfare from Washington, D.C. to Hong Kong is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 21% on airfare.

What is the cheapest day to fly from Washington, D.C. to Hong Kong?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Hong Kong. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Hong Kong flight should consider departing on Tuesday evenings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Hong Kong

Get insights into the airlines that provide service to Hong Kong. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hong Kong. Reviews last updated August 18, 2025.
Peruse reviews from past customers who have flown with Korean Air, Cathay Pacific, and Qatar Airways from Washington, D.C. to Hong Kong to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,131 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
969 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Qatar Airways
7.4
Good
3,609 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
8,925 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
9,992 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Hong Kong. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. to Hong Kong?

    Departing from Washington, D.C. to Hong Kong will take you 24h 45m. The distance from Washington, D.C. to Hong Kong is about 8135 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. to Hong Kong round-trip?

    Air Canada, at $678, was found to be the cheapest airline from Washington, D.C. to Hong Kong.Alternate airlines to your destination round-trip include Air China and Turkish Airlines. Air Canada is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular routes from Washington, D.C. to Hong Kong?

    The most popular route from Washington, D.C. to Hong Kong is Washington, D.C. Dulles Intl - Hong Kong Intl. You may also consider Washington, D.C. Reagan-National - Hong Kong Intl or Baltimore/Washington - Hong Kong Intl.

  • Can I find deals for flights from Washington, D.C. to Hong Kong that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Hong Kong flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Hong Kong?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Hong Kong.

  • Can I find deals for business class flights from Washington, D.C. to Hong Kong?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Hong Kong by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to Hong Kong?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Hong Kong (average of $949). Flying from Washington, D.C. to Hong Kong in December is currently the most expensive (average of $1,629). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Hong Kong

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Washington, D.C. to Hong Kong

Discover the top 8 airlines that operate flights from Washington, D.C. to Hong Kong. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$678Average$801FlexibilityNo cancel feeOn-time67%
Air ChinaCheapest$722Average$928FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$909Average$1,021FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$939Average$1,220FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$974Average$1,162FlexibilityNo cancel feeOn-time68%
United AirlinesCheapest$999Average$1,322FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$1,072Average$1,130FlexibilityNo cancel feeOn-time62%
Cathay PacificCheapest$1,134Average$1,608FlexibilityNo cancel feeOn-time72%

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