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Cheap flights from Hong Kong to Seattle from $420

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 5/11. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Hong Kong to Seattle

Recent round-trip flight deals from Hong Kong to Seattle

Enter your travel dates to find the best prices.
Philippine Airlines Logo
11:30 am - 8:05 pm
HKG
-
SEA
23h 35m
1 stop
Philippine Airlines Logo
11:10 pm - 12:35 pm
SEA
-
HKG
22h 25m
1 stop
$662Philippine Airlines
Thu, Sep 3 - Tue, Sep 8
Multiple Airlines Logo
1:40 pm - 8:05 pm
HKG
-
SEA
21h 25m
1 stop
Multiple Airlines Logo
11:10 pm - 11:30 pm
SEA
-
HKG
33h 20m
1 stop
$757Multiple Airlines
Mon, Jul 27 - Sun, Aug 30
Delta Logo
5:55 pm - 1:37 pm
HKG
-
SEA
34h 42m
1 stop
Delta Logo
9:30 am - 5:05 am
SEA
-
HKG
28h 35m
1 stop
$765Delta
Thu, Sep 3 - Mon, Sep 7
Delta Logo
5:55 pm - 1:37 pm
HKG
-
SEA
34h 42m
1 stop
Delta Logo
12:00 pm - 5:05 am
SEA
-
HKG
26h 05m
1 stop
$766Delta
Thu, Sep 3 - Mon, Sep 7
Delta Logo
9:25 am - 2:43 pm
HKG
-
SEA
20h 18m
1 stop
Delta Logo
7:59 pm - 7:40 am
SEA
-
HKG
19h 41m
1 stop
$773Delta
Fri, Sep 18 - Fri, Nov 13
Korean Air Logo
12:45 am - 10:40 am
HKG
-
SEA
24h 55m
1 stop
Korean Air Logo
12:50 pm - 4:20 pm
SEA
-
HKG
36h 30m
1 stop
$776Korean Air
Wed, Sep 9 - Sat, Sep 12
Korean Air Logo
12:45 am - 10:40 am
HKG
-
SEA
24h 55m
1 stop
Korean Air Logo
12:50 pm - 4:20 pm
SEA
-
HKG
36h 30m
1 stop
$777Korean Air
Wed, Sep 9 - Sat, Sep 12
United Airlines Logo
12:40 pm - 11:10 pm
HKG
-
SEA
25h 30m
2 stops
United Airlines Logo
5:30 pm - 7:20 pm
SEA
-
HKG
33h 50m
1 stop
$781United Airlines
Mon, Jun 15 - Sat, Dec 5
Multiple Airlines Logo
1:40 pm - 8:05 pm
HKG
-
SEA
21h 25m
1 stop
Multiple Airlines Logo
11:10 pm - 4:05 am
SEA
-
HKG
37h 55m
1 stop
$786Multiple Airlines
Mon, Jul 27 - Wed, Aug 26
Multiple Airlines Logo
1:40 pm - 8:05 pm
HKG
-
SEA
21h 25m
1 stop
Multiple Airlines Logo
11:10 pm - 4:05 am
SEA
-
HKG
37h 55m
1 stop
$793Multiple Airlines
Mon, Jul 27 - Tue, Aug 25

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Philippine Airlines flights from Hong Kong to Seattle

Our best Philippine Airlines deals on Hong Kong to Seattle flight tickets
Philippine Airlines
Sep 3
HKG11:30 amHong Kong Intl
23h 35m
1 stop
SEA8:05 pmSeattle/Tacoma Intl
Sep 8
SEA11:10 pmSeattle/Tacoma Intl
22h 25m
1 stop
HKG12:35 pmHong Kong Intl
$662
Philippine Airlines
Jun 15
HKG1:40 pmHong Kong Intl
21h 25m
1 stop
SEA8:05 pmSeattle/Tacoma Intl
Dec 7
SEA11:55 pmSeattle/Tacoma Intl
18h 15m
1 stop
HKG10:10 amHong Kong Intl
$814
Philippine Airlines
Jun 28
HKG11:15 pmHong Kong Intl
35h 50m
1 stop
SEA8:05 pmSeattle/Tacoma Intl
Dec 4
SEA11:55 pmSeattle/Tacoma Intl
29h 30m
1 stop
HKG9:25 pmHong Kong Intl
$827

Delta flights from Hong Kong to Seattle

Our best Delta deals on Hong Kong to Seattle flight tickets
Delta
Sep 3
HKG5:55 pmHong Kong Intl
34h 42m
1 stop
SEA1:37 pmSeattle/Tacoma Intl
Sep 7
SEA9:30 amSeattle/Tacoma Intl
28h 35m
1 stop
HKG5:05 amHong Kong Intl
$765
Delta
Sep 3
HKG5:55 pmHong Kong Intl
34h 42m
1 stop
SEA1:37 pmSeattle/Tacoma Intl
Sep 7
SEA12:00 pmSeattle/Tacoma Intl
26h 05m
1 stop
HKG5:05 amHong Kong Intl
$766
Delta
Sep 18
HKG9:25 amHong Kong Intl
20h 18m
1 stop
SEA2:43 pmSeattle/Tacoma Intl
Nov 13
SEA7:59 pmSeattle/Tacoma Intl
19h 41m
1 stop
HKG7:40 amHong Kong Intl
$773

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 April 19, 2026.
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

Cheapest round-trip

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Thu 9/3

11:30 am-8:05 pm

1 stop23h 35m

Seattle/Tacoma Intl

Tue 9/8

11:10 pm-12:35 pm

1 stop22h 25m

$662

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Mon 7/27

1:40 pm-8:05 pm

1 stop21h 25m

Seattle/Tacoma Intl

Sun 8/30

11:10 pm-11:30 pm

1 stop33h 20m

$757

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Thu 9/3

5:55 pm-1:37 pm

1 stop34h 42m

Seattle/Tacoma Intl

Mon 9/7

9:30 am-5:05 am

1 stop28h 35m

$765

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Thu 9/3

5:55 pm-1:37 pm

1 stop34h 42m

Seattle/Tacoma Intl

Mon 9/7

12:00 pm-5:05 am

1 stop26h 05m

$766
Quickest round-trip

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Fri 9/18

9:25 am-2:43 pm

1 stop20h 18m

Seattle/Tacoma Intl

Fri 11/13

7:59 pm-7:40 am

1 stop19h 41m

$773

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Wed 9/9

12:45 am-10:40 am

1 stop24h 55m

Seattle/Tacoma Intl

Sat 9/12

12:50 pm-4:20 pm

1 stop36h 30m

$776

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Wed 9/9

12:45 am-10:40 am

1 stop24h 55m

Seattle/Tacoma Intl

Sat 9/12

12:50 pm-4:20 pm

1 stop36h 30m

$777

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Mon 6/15

12:40 pm-11:10 pm

2 stops25h 30m

Seattle/Tacoma Intl

Sat 12/5

5:30 pm-7:20 pm

1 stop33h 50m

$781

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Mon 7/27

1:40 pm-8:05 pm

1 stop21h 25m

Seattle/Tacoma Intl

Wed 8/26

11:10 pm-4:05 am

1 stop37h 55m

$786

Hong KongSeattle

HKG - SEA

HKGSEA

Hong Kong Intl

Mon 7/27

1:40 pm-8:05 pm

1 stop21h 25m

Seattle/Tacoma Intl

Tue 8/25

11:10 pm-4:05 am

1 stop37h 55m

$793

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, January 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 $641. If you don’t want to visit Seattle in January, then you should wait until November to fly from Hong Kong, when ticket prices are also cheap, with an average price of $664.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $671. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday 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 $854.

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

Fly from Hong Kong Intl to Seattle/Tacoma Intl for the best Hong Kong - 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 $794 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 $640 on momondo.

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

There are 2 cabin classes available to choose from on Hong Kong 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.

Cheap Hong Kong to Seattle 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, Fri 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, Friday 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

Frequently asked questions about flying from Hong Kong to Seattle

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

    Prices for flights from Hong Kong to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Hong Kong to Seattle/Tacoma Intl Airport.

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

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model 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
Philippine AirlinesPriceFrom $531Free CancellationRating
7.3
991 reviews
Search Philippine Airlines flights
DeltaPriceFrom $552Free CancellationRating
7.9
8,421 reviews
Search Delta flights
United AirlinesPriceFrom $581Free CancellationRating
7.4
9,607 reviews
Search United Airlines flights
China AirlinesPriceFrom $608Free CancellationRating
8.3
818 reviews
Search China Airlines flights
Asiana AirlinesPriceFrom $632Free CancellationRating
8.0
518 reviews
Search Asiana Airlines flights
Cathay PacificPriceFrom $637Free CancellationRating
7.6
1,282 reviews
Search Cathay Pacific flights
Air CanadaPriceFrom $641Free CancellationRating
7.1
10,943 reviews
Search Air Canada flights
EVA AirPriceFrom $642Free CancellationRating
8.5
1,422 reviews
Search EVA Air 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
Redmond
Marysville
Lakewood
Tukwila
Puyallup
Cle Elum
Federal Way
Centralia
Fife
Westport
Shoreline
Tumwater

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?

Flights from Hong Kong to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Hong Kong to Seattle.

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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