$324 Cheap Flights from Seattle (SEA) to Hong Kong (HKG)

View $324 flight on Fri, Aug 15, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Hong Kong International Airport (HKG)

Cheap Flights from Seattle to Hong Kong (SEA-HKG)

Prices were available within the past 7 days and start at $324 for one-way flights and $561 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Mar 4 - Tue, Mar 10
SEA
Seattle
HKG
Hong Kong SAR
$561 Roundtrip, found 18 hours ago
$561
Roundtrip
found 18 hours ago
Select Air Canada flight, departing Wed, Mar 4 from Seattle to Hong Kong SAR, returning Tue, Mar 10, priced at $561 found 18 hours ago
Air Canada
Tue, Aug 5 - Thu, Aug 21
SEA
Seattle
HKG
Hong Kong SAR
$563 Roundtrip, just found
$563
Roundtrip
just found
Select Air Canada flight, departing Tue, Aug 5 from Seattle to Hong Kong SAR, returning Thu, Aug 21, priced at $563 just found
Delta
Mon, Nov 3 - Tue, Mar 17
SEA
Seattle
HKG
Hong Kong SAR
$704 Roundtrip, found 3 days ago
$704
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Nov 3 from Seattle to Hong Kong SAR, returning Tue, Mar 17, priced at $704 found 3 days ago
United
Mon, Nov 10 - Tue, Nov 25
SEA
Seattle
HKG
Hong Kong SAR
$704 Roundtrip, just found
$704
Roundtrip
just found
Select United flight, departing Mon, Nov 10 from Seattle to Hong Kong SAR, returning Tue, Nov 25, priced at $704 just found
Korean Air
Wed, Nov 5 - Wed, Mar 18
SEA
Seattle
HKG
Hong Kong SAR
$706 Roundtrip, found 3 days ago
$706
Roundtrip
found 3 days ago
Select Korean Air flight, departing Wed, Nov 5 from Seattle to Hong Kong SAR, returning Wed, Mar 18, priced at $706 found 3 days ago
Asiana Airlines
Thu, Nov 6 - Sun, Dec 7
SEA
Seattle
HKG
Hong Kong SAR
$710 Roundtrip, just found
$710
Roundtrip
just found
Select Asiana Airlines flight, departing Thu, Nov 6 from Seattle to Hong Kong SAR, returning Sun, Dec 7, priced at $710 just found
Philippine Airlines
Sun, Nov 23 - Wed, Nov 26
SEA
Seattle
HKG
Hong Kong SAR
$715 Roundtrip, found 19 hours ago
$715
Roundtrip
found 19 hours ago
Select Philippine Airlines flight, departing Sun, Nov 23 from Seattle to Hong Kong SAR, returning Wed, Nov 26, priced at $715 found 19 hours ago
All Nippon Airways
Mon, Nov 10 - Tue, Nov 25
SEA
Seattle
HKG
Hong Kong SAR
$726 Roundtrip, just found
$726
Roundtrip
just found
Select All Nippon Airways flight, departing Mon, Nov 10 from Seattle to Hong Kong SAR, returning Tue, Nov 25, priced at $726 just found
Japan Airlines
Thu, Aug 21 - Thu, Sep 11
SEA
Seattle
HKG
Hong Kong SAR
$791 Roundtrip, found 16 hours ago
$791
Roundtrip
found 16 hours ago
Select Japan Airlines flight, departing Thu, Aug 21 from Seattle to Hong Kong SAR, returning Thu, Sep 11, priced at $791 found 16 hours ago
China Airlines
Wed, Feb 4 - Tue, Feb 24
SEA
Seattle
HKG
Hong Kong SAR
$798 Roundtrip, found 16 hours ago
$798
Roundtrip
found 16 hours ago
Select China Airlines flight, departing Wed, Feb 4 from Seattle to Hong Kong SAR, returning Tue, Feb 24, priced at $798 found 16 hours ago

Find the cheapest month to fly from Seattle (SEA) to Chek Lap Kok (HKG)

September is typically the cheapest month to fly

From $562 - $963 per traveler.

Graph displaying average flight prices per month

Alternative airports near Chek Lap Kok

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Macau Intl. MFM. Flights from $879
MFM
Macau Intl.
Flights from $879
Select flight to Shenzhen Intl. SZX. Flights from $1,532
SZX
Shenzhen Intl.
Flights from $1,532
Flights from Seattle (SEA) to Hong Kong (HKG)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Hong Kong Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, China Eastern Airlines, Delta, EVA Airways, Emirates, Hainan Airlines, Japan Airlines, KLM, Korean Air, Lufthansa, Philippine Airlines, Qatar Airways, STARLUX Airlines, United
Roundtrip price
$561
Distance
6487 mi

Seattle to Hong Kong Flights

The cheapest times to fly from Seattle to Hong Kong

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Hong Kong are during the month of March. You can find some of the cheapest flights from Seattle to Hong Kong with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Hong Kong

Sunday is one of the best days to book for cheap flights from Seattle to Hong Kong: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Hong Kong

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Hong Kong in 2025. You can also book with separate airlines for your outbound and return journeys, from $324 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Hong Kong flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Hong Kong airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Hong Kong Intl. Airport (HKG) cost?
Discover the latest flight deals from SEA to HKG by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SEA to HKG?
The cheapest flights from SEA to HKG are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SEA to HKG?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SEA to HKG. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Hong Kong Intl. Airport (HKG)?
There are no daily nonstop flights available from Seattle - Tacoma Intl. Airport (SEA) to Hong Kong Intl. Airport (HKG). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from SEA to HKG?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Hong Kong Intl. Airport (HKG)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Hong Kong Intl. Airport (HKG) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Hong Kong Intl. Airport (HKG) last-minute?
Booking your flight from SEA to HKG just before your journey is generally more expensive. However, if there's some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a SEA to HKG flight and hotel package?
Booking a SEA to HKG flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our extensive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Hong Kong Intl. Airport (HKG)?
If you booked your SEA to HKG flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.