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$402+ Cheap flights from Dulles Intl (IAD) 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — 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. Dulles Intl to Hong Kong are usually found in October or November, booked 84 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Cheap flight deals from Dulles Intl to Hong Kong

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

Round-trip from

$771
(Air Canada)

One-way from

$402
(Air Canada)

Popular in

June

Cheapest in

October

Average price

$1,233
From Washington, D.C. Dulles Intl to Hong Kong
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One-way flight from Washington, D.C. Dulles Intl to Hong Kong
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Highest demand for flights based on searches. 12% potential increase in price ($173 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 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 Dulles Intl to Hong Kong

Cheapest flights from Dulles Intl to Hong Kong
Explore the most affordable flight options available from Dulles Intl 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 8/18. 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.
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 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
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.
Sat 9/131:00 pmIAD - HKG
2 stops39h 05mAir Canada
Sat 9/206:00 pmHKG - IAD
2 stops29h 13mAir Canada
Deal found 8/18$807
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 11/279:00 amIAD - HKG
2 stops24h 50mMultiple Airlines
Thu 12/410:00 amHKG - IAD
3 stops23h 59mMultiple Airlines
Deal found 8/16$810
This Trip.com 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 Trip.com 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
Fri 12/198:30 amHKG - IAD
1 stop23h 00mAir China
Deal found 8/16$811
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.
Mon 9/85:37 pmIAD - HKG
2 stops34h 28mAir Canada
Tue 9/236:00 pmHKG - IAD
1 stop24h 31mAir Canada
Deal found 8/18$815
This IEagle 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/410:00 pmIAD - HKG
1 stop33h 50mAir China
Tue 12/98:30 amHKG - IAD
1 stop23h 00mAir China
Deal found 8/15$818
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3111:00 pmIAD - HKG
1 stop33h 50mAir China
Fri 12/198:30 amHKG - IAD
1 stop23h 00mAir China
Deal found 8/17$819
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.
Sat 10/45:22 pmIAD - HKG
2 stops34h 43mAir Canada
Sat 10/186:00 pmHKG - IAD
2 stops27h 38mAir Canada
Deal found 8/16$820

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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. Dulles Intl Airport to Hong Kong that are best for you.

Fly from

Dulles Intl

Fly to

Hong Kong

Route

Depart

Return

Price

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

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Sat 9/13

1:00 pm-4:05 pm

2 stops39h 05m

Hong Kong Intl

Sat 9/20

6:00 pm-11:13 am

2 stops29h 13m

$807

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Sat 2/14

1:20 pm-6:40 pm

2 stops64h 20m

Hong Kong Intl

Tue 5/26

6:00 pm-9:01 pm

2 stops39h 01m

$815

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Wed 11/12

1:20 pm-6:40 pm

2 stops40h 20m

Hong Kong Intl

Wed 12/17

8:25 pm-9:25 pm

2 stops38h 00m

$815

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Sat 2/14

1:20 pm-6:40 pm

2 stops64h 20m

Hong Kong Intl

Wed 5/27

6:00 pm-7:46 am

2 stops25h 46m

$815

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Tue 9/9

5:37 pm-4:05 pm

2 stops34h 28m

Hong Kong Intl

Wed 10/15

6:00 pm-11:13 am

2 stops29h 13m

$815

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Wed 9/10

5:13 pm-4:05 pm

2 stops34h 52m

Hong Kong Intl

Wed 9/24

6:00 pm-6:31 am

1 stop24h 31m

$815

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Tue 9/9

5:37 pm-4:05 pm

2 stops34h 28m

Hong Kong Intl

Wed 9/24

6:00 pm-6:31 am

1 stop24h 31m

$815

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Tue 9/9

5:37 pm-4:05 pm

2 stops34h 28m

Hong Kong Intl

Tue 9/23

6:00 pm-6:31 am

1 stop24h 31m

$815

Washington, D.C.Hong Kong

IAD - HKG

IADHKG

Washington, D.C. Dulles Intl

Mon 9/8

5:37 pm-4:05 pm

2 stops34h 28m

Hong Kong Intl

Mon 9/22

6:00 pm-9:38 am

2 stops27h 38m

$822

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 18 results
1
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Best time to book a flight from Dulles Intl to Hong Kong

Have a flexible travel schedule? Discover the best time to fly to Hong Kong from Dulles Intl 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. Dulles Intl Airport to Hong Kong

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

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Hong Kong, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Hong Kong (average of $949). Flying from Washington, D.C. Dulles Intl Airport 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 IAD to HK?

Find hourly flight availability from Dulles Intl 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.

When flying from Washington, D.C. Dulles Intl Airport to Hong Kong, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 31% versus a flight at noon.

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

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

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Hong Kong flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday 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.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Hong Kong, such as Korean Air, Qatar Airways, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very good
1,131 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Qatar Airways
7.4
Good
3,609 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
United Airlines
7.4
Good
8,925 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Air China
7.3
Good
95 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Air Canada
7.1
Good
9,992 reviews
Korean Air
8.4
Very good
1,131 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl Airport to Hong Kong?

    A quick flight from Washington, D.C. Dulles Intl Airport to Hong Kong can take about 24h 45m. Air China provides one of the quickest options available for as low as $800. Airlines will cover a distance of 8135 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $678, Air Canada will fly you from Washington, D.C. Dulles Intl Airport to Hong Kong and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air China and Turkish Airlines - these airlines can fly you to your destination from $722 and $909, respectively. These flights start at 44% lower than the current average price 3 months from now.

  • Can I find deals for flights from Dulles Intl to Hong Kong that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl to Hong Kong?

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

  • Can I find deals for business class flights from Dulles Intl to Hong Kong?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Hong Kong?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Hong Kong (average of $949). Flying from Washington, D.C. Dulles Intl Airport 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

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Alternative routes for Dulles Intl 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 Dulles Intl to Hong Kong

Discover the top 8 airlines that operate flights from Dulles Intl 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$812FlexibilityNo 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%
JetBlueCheapest$1,072Average$1,130FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$1,079Average$1,353FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$1,134Average$1,619FlexibilityNo cancel feeOn-time72%

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