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Cheap flights from Hong Kong to Seattle from $336

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hong Kong to Seattle departing on 12/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Hong Kong to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Philippine Airlines Logo
11:15 pm - 8:05 pm
HKG
-
SEA
35h 50m1 stop
Philippine Airlines Logo
11:10 pm - 10:05 am
SEA
-
HKG
19h 55m1 stop
$552Philippine Airlines
Mon, Mar 30 - Tue, Apr 28
Philippine Airlines Logo
11:15 am - 6:40 pm
HKG
-
SEA
23h 25m1 stop
Philippine Airlines Logo
11:10 pm - 12:35 pm
SEA
-
HKG
22h 25m1 stop
$554Philippine Airlines
Wed, Mar 4 - Wed, Apr 1
Philippine Airlines Logo
1:40 pm - 7:40 pm
HKG
-
SEA
21h 00m1 stop
Philippine Airlines Logo
11:10 pm - 12:35 pm
SEA
-
HKG
22h 25m1 stop
$562Philippine Airlines
Fri, Mar 13 - Sun, Apr 5
Philippine Airlines Logo
10:45 pm - 6:40 pm
HKG
-
SEA
35h 55m1 stop
Philippine Airlines Logo
9:30 pm - 9:45 pm
SEA
-
HKG
32h 15m1 stop
$564Philippine Airlines
Mon, Feb 2 - Sun, Feb 15
Philippine Airlines Logo
11:15 pm - 8:05 pm
HKG
-
SEA
35h 50m1 stop
Philippine Airlines Logo
11:10 pm - 9:55 pm
SEA
-
HKG
31h 45m1 stop
$569Philippine Airlines
Mon, May 11 - Tue, May 19
Philippine Airlines Logo
11:15 pm - 8:05 pm
HKG
-
SEA
35h 50m1 stop
Philippine Airlines Logo
11:10 pm - 12:35 pm
SEA
-
HKG
22h 25m1 stop
$599Philippine Airlines
Sat, May 9 - Sun, May 17
Philippine Airlines Logo
11:15 pm - 8:05 pm
HKG
-
SEA
35h 50m1 stop
Philippine Airlines Logo
11:10 pm - 9:55 pm
SEA
-
HKG
31h 45m1 stop
$600Philippine Airlines
Mon, Apr 20 - Fri, Apr 24
Multiple Airlines Logo
12:55 am - 1:55 pm
HKG
-
SEA
29h 00m1 stop
Multiple Airlines Logo
12:10 am - 11:10 pm
SEA
-
HKG
31h 00m1 stop
$615Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
United Airlines Logo
10:30 pm - 12:59 am
HKG
-
SEA
18h 29m1 stop
United Airlines Logo
12:35 pm - 6:45 am
SEA
-
HKG
26h 10m1 stop
$626United Airlines
Wed, Dec 24 - Sat, Jan 17
Asiana Airlines Logo
1:00 pm - 2:55 pm
HKG
-
SEA
16h 55m1 stop
Asiana Airlines Logo
12:10 am - 11:40 am
SEA
-
HKG
20h 30m1 stop
$634Asiana Airlines
Mon, May 11 - Sun, May 17

Philippine Airlines flights from Hong Kong to Seattle

Our best Philippine Airlines deals on Hong Kong to Seattle flight tickets
Philippine Airlines
Mar 30
HKG11:15 pmHong Kong Intl
35h 50m
1 stop
SEA8:05 pmSeattle/Tacoma Intl
Apr 28
SEA11:10 pmSeattle/Tacoma Intl
19h 55m
1 stop
HKG10:05 amHong Kong Intl
$552
Find similar
Philippine Airlines
Mar 4
HKG11:15 amHong Kong Intl
23h 25m
1 stop
SEA6:40 pmSeattle/Tacoma Intl
Apr 1
SEA11:10 pmSeattle/Tacoma Intl
22h 25m
1 stop
HKG12:35 pmHong Kong Intl
$554
Find similar
Philippine Airlines
Mar 13
HKG1:40 pmHong Kong Intl
21h 00m
1 stop
SEA7:40 pmSeattle/Tacoma Intl
Apr 5
SEA11:10 pmSeattle/Tacoma Intl
22h 25m
1 stop
HKG12:35 pmHong Kong Intl
$562
Find similar

United Airlines flights from Hong Kong to Seattle

Our best United Airlines deals on Hong Kong to Seattle flight tickets
United Airlines
Dec 24
HKG11:25 amHong Kong Intl
25h 42m
2 stops
SEA9:07 pmSeattle/Tacoma Intl
Jan 17
SEA9:25 amSeattle/Tacoma Intl
29h 35m
2 stops
HKG7:00 amHong Kong Intl
$626
Find similar
United Airlines
Mar 30
HKG11:45 amHong Kong Intl
37h 00m
2 stops
SEA9:45 amSeattle/Tacoma Intl
Apr 28
SEA9:02 amSeattle/Tacoma Intl
18h 53m
1 stop
HKG6:55 pmHong Kong Intl
$667
Find similar
United Airlines
Mar 4
HKG10:35 amHong Kong Intl
23h 28m
2 stops
SEA6:03 pmSeattle/Tacoma Intl
Apr 1
SEA8:55 amSeattle/Tacoma Intl
29h 05m
2 stops
HKG5:00 amHong Kong Intl
$712
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Hong Kong to Seattle 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, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from Hong Kong to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Mon 3/30

11:15 pm-8:05 pm

1 stop35h 50m

Seattle/Tacoma Intl

Tue 4/28

11:10 pm-10:05 am

1 stop19h 55m

$552

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Wed 3/4

11:15 am-6:40 pm

1 stop23h 25m

Seattle/Tacoma Intl

Wed 4/1

11:10 pm-12:35 pm

1 stop22h 25m

$554

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Fri 3/13

1:40 pm-7:40 pm

1 stop21h 00m

Seattle/Tacoma Intl

Sun 4/5

11:10 pm-12:35 pm

1 stop22h 25m

$562

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Mon 2/2

10:45 pm-6:40 pm

1 stop35h 55m

Seattle/Tacoma Intl

Sun 2/15

9:30 pm-9:45 pm

1 stop32h 15m

$564

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Mon 5/11

11:15 pm-8:05 pm

1 stop35h 50m

Seattle/Tacoma Intl

Tue 5/19

11:10 pm-9:55 pm

1 stop31h 45m

$569

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Sat 5/9

11:15 pm-8:05 pm

1 stop35h 50m

Seattle/Tacoma Intl

Sun 5/17

11:10 pm-12:35 pm

1 stop22h 25m

$599

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Mon 4/20

11:15 pm-8:05 pm

1 stop35h 50m

Seattle/Tacoma Intl

Fri 4/24

11:10 pm-9:55 pm

1 stop31h 45m

$600

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Fri 1/23

12:55 am-1:55 pm

1 stop29h 00m

Seattle/Tacoma Intl

Fri 1/30

12:10 am-11:10 pm

1 stop31h 00m

$615

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Wed 12/24

10:30 pm-12:59 am

1 stop18h 29m

Seattle/Tacoma Intl

Sat 1/17

12:35 pm-6:45 am

1 stop26h 10m

$626

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Mon 5/11

1:00 pm-2:55 pm

1 stop16h 55m

Seattle/Tacoma Intl

Sun 5/17

12:10 am-11:40 am

1 stop20h 30m

$634

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Hong Kong to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, November is the cheapest month to fly from Hong Kong to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $678. If you don’t want to visit Seattle in November, then you should wait until February to fly from Hong Kong, when ticket prices are also cheap, with an average price of $730.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Hong Kong is on a Monday. momondo users have found tickets for Monday departures for as low as $989. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday is the most expensive day to depart from Hong Kong because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,133.

What is the cheapest Hong Kong Intl to Seattle/Tacoma Intl flight route?

Fly from Hong Kong Intl to Seattle/Tacoma Intl for the best Hong Kong Intl - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Hong Kong when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $857 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Hong Kong for as low as $705 on momondo.

What cabin class options are available on Hong Kong Intl to Seattle/Tacoma Intl flights?

There is only 1 cabin class available to choose from on Hong Kong Intl to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Hong Kong to Seattle flight prices changed over time?

As of December 2025, prices for Hong Kong to Seattle flights are approximately 53% cheaper when compared to flights at the same time last year.

When to book flights from Hong Kong to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Hong Kong to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hong Kong to Seattle (HKG to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hong Kong to Seattle

Fastest flight time

11h 40m

Direct flights

Tue, Wed, Thu and Sun

Airports in Seattle

1 airport
The fastest flight from Hong Kong to Seattle takes 11h 40m
Direct flights go from Hong Kong to Seattle on Tuesday, Wednesday, Thursday and Sunday. The only airline offering direct flights is Cathay Pacific.
There is 1 airport in Seattle. From Hong Kong there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • How far is Hong Kong Intl to Seattle/Tacoma Intl by plane?

    There are 6465.5 mi between Hong Kong Intl and Seattle/Tacoma Intl. 11h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Hong Kong Intl Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Hong Kong Intl Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Hong Kong Intl Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Hong Kong Intl Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Hong Kong Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Hong Kong to Seattle?

  • What is the most popular airline from Hong Kong to Seattle?

Best airlines flying from Hong Kong to Seattle

Compare and see reviews for airlines that fly from Hong Kong to Seattle with momondo
Airline
Rating
Free Cancellation
Price
China AirlinesPriceFrom $605Free CancellationRating
8.2
788 reviews
Search China Airlines flights
Asiana AirlinesPriceFrom $632Free CancellationRating
8.2
492 reviews
Search Asiana Airlines flights
EVA AirPriceFrom $723Free CancellationRating
8.4
1,296 reviews
Search EVA Air flights
United AirlinesPriceFrom $818Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
DeltaPriceFrom $834Free CancellationRating
7.9
8,008 reviews
Search Delta flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Westport
Kirkland
Centralia
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Hong Kong to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Hong Kong.

Can I find flights from Hong Kong to Seattle with flexible booking policies on momondo?

All flight searches from Hong Kong to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Hong Kong to Seattle?

momondo helps you find the best flight between Hong Kong and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Hong Kong to Seattle right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Hong Kong to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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