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$300+ Cheap flights from Washington 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HKG
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Washington to Hong Kong

Keep the following information in mind while searching for Washington to Hong Kong flight deals. Data was last updated September 16, 2025.

Round-trip from

$606
(CrystalTravel)

One-way from

$300
(Cheapflightsfares)

Popular in

July

Cheapest in

September

Average price

$745
From Washington to Hong Kong
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One-way flight from Washington to Hong Kong
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Highest demand for flights based on searches. 7% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Washington to Hong Kong

Cheapest flights from Washington to Hong Kong
Explore the most affordable flight options available from Washington to Hong Kong. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This CrystalTravel deal was found by Cheapflights users on 9/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2211:35 pmSEA - HKG
1 stop19h 35mPhilippine Airlines
Sun 11/161:40 pmHKG - SEA
1 stop21h 00mPhilippine Airlines
Deal found 9/15$606
This CrystalTravel deal was found by Cheapflights users on 9/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1911:35 pmSEA - HKG
1 stop21h 50mPhilippine Airlines
Wed 11/196:55 pmHKG - SEA
1 stop15h 45mPhilippine Airlines
Deal found 9/14$619
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:35 pmSEA - HKG
1 stop19h 35mPhilippine Airlines
Sun 9/211:40 pmHKG - SEA
1 stop20h 35mPhilippine Airlines
Deal found 9/14$621
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2411:35 pmSEA - HKG
1 stop26h 45mPhilippine Airlines
Wed 10/221:40 pmHKG - SEA
1 stop20h 35mPhilippine Airlines
Deal found 9/16$622
This Gotogate deal was found by Cheapflights users on 9/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2111:35 pmSEA - HKG
1 stop26h 45mPhilippine Airlines
Sat 10/411:00 pmHKG - SEA
1 stop35h 15mPhilippine Airlines
Deal found 9/15$624
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Sun 10/1911:35 pmSEA - HKG
1 stop26h 45mPhilippine Airlines
Wed 10/2211:20 amHKG - SEA
1 stop22h 55mPhilippine Airlines
Deal found 9/14$629
This oojo deal was found by Cheapflights users on 9/14. 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 11/259:30 pmSEA - HKG
1 stop28h 25mPhilippine Airlines
Mon 12/1510:45 pmHKG - SEA
1 stop35h 55mPhilippine Airlines
Deal found 9/14$638
This CrystalTravel deal was found by Cheapflights users on 9/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:10 amSEA - HKG
1 stop19h 40mAsiana Airlines
Tue 12/161:15 pmHKG - SEA
1 stop16h 40mAsiana Airlines
Deal found 9/14$639
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2211:35 pmSEA - HKG
1 stop21h 50mPhilippine Airlines
Sat 11/1510:45 pmHKG - SEA
1 stop35h 55mPhilippine Airlines
Deal found 9/15$640
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Wed 10/2910:30 pmSEA - HKG
1 stop23h 00mPhilippine Airlines
Wed 11/196:55 pmHKG - SEA
1 stop15h 45mPhilippine Airlines
Deal found 9/14$646
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Wed 11/269:30 pmSEA - HKG
1 stop28h 25mPhilippine Airlines
Sun 12/141:40 pmHKG - SEA
1 stop21h 00mPhilippine Airlines
Deal found 9/14$647
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/298:21 amPSC - HKG
2 stops34h 54mMultiple Airlines
Wed 11/511:15 amHKG - PSC
2 stops28h 58mMultiple Airlines
Deal found 9/14$768

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 September 16, 2025.
Use the filters below to find and compare flights from Washington to Hong Kong that are best for you.

Fly from

Washington

Fly to

Hong Kong

Route

Depart

Return

Price

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Tue 1/6

11:25 am-4:50 pm

1 stop37h 25m

Hong Kong Intl

Mon 1/19

12:55 am-1:20 pm

1 stop28h 25m

$704

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Tue 10/21

12:50 pm-10:40 am

1 stop30h 50m

Hong Kong Intl

Tue 11/18

12:55 am-9:00 am

1 stop24h 05m

$706

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Mon 10/20

6:35 am-6:55 pm

2 stops21h 20m

Hong Kong Intl

Wed 11/19

2:20 pm-1:20 pm

1 stop15h 00m

$709

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Sun 11/23

12:10 am-10:30 pm

1 stop30h 20m

Hong Kong Intl

Wed 12/10

12:30 am-1:55 pm

1 stop29h 25m

$709

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Tue 11/11

12:20 pm-4:50 pm

2 stops36h 30m

Hong Kong Intl

Mon 11/24

6:10 pm-9:00 am

1 stop30h 50m

$711

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Tue 10/21

12:45 pm-4:20 pm

2 stops36h 35m

Hong Kong Intl

Tue 11/4

12:55 am-9:00 am

1 stop24h 05m

$711

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Mon 11/3

12:00 pm-7:00 am

2 stops27h 00m

Hong Kong Intl

Mon 12/8

11:25 am-9:00 pm

2 stops25h 35m

$713

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Mon 10/27

7:28 pm-5:45 am

1 stop19h 17m

Hong Kong Intl

Wed 11/26

11:25 am-8:51 pm

2 stops25h 26m

$713

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Sat 12/6

12:10 am-10:30 pm

1 stop30h 20m

Hong Kong Intl

Tue 12/16

1:15 pm-1:55 pm

1 stop16h 40m

$719

SeattleHong Kong

SEA - HKG

SEAHKG

Seattle/Tacoma Intl

Mon 11/10

5:59 pm-11:20 am

2 stops25h 21m

Hong Kong Intl

Sun 12/14

12:55 am-2:44 pm

2 stops29h 49m

$722

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 55 results
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Best time to book a flight from Washington to Hong Kong

Have a flexible travel schedule? Discover the best time to fly to Hong Kong from Washington 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 to Hong Kong

What is the cheapest month to book a flight from State of Washington to Hong Kong?

Currently, September is the cheapest month in which you can book a flight from State of Washington to Hong Kong (average of $938). Flying from State of Washington to Hong Kong in December is currently the most expensive (average of $1,610). 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 WA to HK?

Find hourly flight availability from Washington 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 September 16, 2025.

When flying from State of Washington to Hong Kong, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Washington 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 State of Washington to Hong Kong?

    Airlines like Delta, Korean Air, and United Airlines fly from State of Washington to Hong Kong in about 21h 20m. The time it takes to get you to your destination can typically vary by up to 16h 05m. State of Washington and Hong Kong are separated by a distance of 6484 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 to fly from State of Washington to Hong Kong one-way?

    For one-way options, check prices for Philippine Airlines. According to our data, you can fly for as low as $330. Users have also found prices from $335 and $452 on Asiana Airlines and Air Canada, respectively.

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

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

  • How can I find direct flights from Washington 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 to Hong Kong.

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Hong Kong?

    Currently, September is the cheapest month in which you can book a flight from State of Washington to Hong Kong (average of $938). Flying from State of Washington to Hong Kong in December is currently the most expensive (average of $1,610). 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 Washington to Hong Kong

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington to Hong Kong

Discover the top 10 airlines that operate flights from Washington 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$499Average$687FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$569Average$792FlexibilityNo cancel feeOn-time79%
Philippine AirlinesCheapest$603Average$710FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$663Average$786FlexibilityNo cancel feeOn-time76%
ANACheapest$674Average$841FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$677Average$810FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$726Average$1,053FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$770Average$868FlexibilityNo cancel feeOn-time70%
DeltaCheapest$774Average$941FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$774Average$1,467FlexibilityNo cancel feeOn-time72%

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