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Hangzhou

$698+ Cheap flights from Seattle (SEA) to Hangzhou (HGH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HGH
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
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Cheap flight deals from Seattle to Hangzhou

Cheapest flights from Seattle to Hangzhou
Explore the most affordable flight options available from Seattle to Hangzhou. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.

This oojo deal was found by Cheapflights users on 7/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:45 am
SEA
-
HGH
1 stop31h 25m
Cathay Pacific
Sat 10/248:00 am
HGH
-
SEA
1 stop17h 05m
Cathay Pacific
Deal found 7/16$698
This FlightHub deal was found by Cheapflights users on 7/13. 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.
Mon 11/3010:50 am
SEA
-
HGH
1 stop31h 20m
Cathay Pacific
Wed 12/163:45 pm
HGH
-
SEA
1 stop33h 25m
Cathay Pacific
Deal found 7/13$709
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:25 pm
SEA
-
HGH
1 stop30h 45m
Cathay Pacific
Tue 9/297:45 pm
HGH
-
SEA
1 stop29h 20m
Cathay Pacific
Deal found 7/15$724
This Ovago deal was found by Cheapflights users on 7/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:50 am
SEA
-
HGH
1 stop31h 20m
Cathay Pacific
Mon 11/168:00 am
HGH
-
SEA
1 stop17h 10m
Cathay Pacific
Deal found 7/13$727
This KAYAK deal was found by Cheapflights users on 7/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:50 am
SEA
-
HGH
1 stop31h 20m
Cathay Pacific
Thu 11/198:00 am
HGH
-
SEA
1 stop17h 10m
Cathay Pacific
Deal found 7/13$732
This FlightHub deal was found by Cheapflights users on 7/13. 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.
Sat 10/3111:50 am
SEA
-
HGH
1 stop35h 40m
Cathay Pacific
Sun 11/1511:25 am
HGH
-
SEA
1 stop37h 45m
Cathay Pacific
Deal found 7/13$759
This KAYAK deal was found by Cheapflights users on 7/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2110:50 am
SEA
-
HGH
1 stop19h 05m
Cathay Pacific
Sun 12/67:30 pm
HGH
-
SEA
1 stop29h 40m
Cathay Pacific
Deal found 7/17$765
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:25 pm
SEA
-
HGH
1 stop19h 10m
Cathay Pacific
Wed 9/238:00 am
HGH
-
SEA
1 stop17h 05m
Cathay Pacific
Deal found 7/15$774
This KAYAK deal was found by Cheapflights users on 7/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:50 am
SEA
-
HGH
1 stop31h 20m
Cathay Pacific
Tue 11/1711:25 am
HGH
-
SEA
1 stop37h 45m
Cathay Pacific
Deal found 7/13$782
This FlightHub deal was found by Cheapflights users on 7/14. 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.
Mon 8/3112:25 pm
SEA
-
HGH
1 stop35h 15m
Cathay Pacific
Sun 9/2711:25 am
HGH
-
SEA
1 stop37h 40m
Cathay Pacific
Deal found 7/14$784
This oojo deal was found by Cheapflights users on 7/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:55 pm
SEA
-
HGH
2 stops24h 15m
Cathay Pacific
Sun 12/63:45 pm
HGH
-
SEA
1 stop33h 25m
Cathay Pacific
Deal found 7/16$799

Find flight deals from Seattle to Hangzhou

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Hangzhou (HGH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$698
(oojo)
Provider with most accurate pricing for Seattle/Tacoma Intl-Hangzhou flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Hangzhou flights.
Search Deals
From Seattle/Tacoma Intl to Hangzhou
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Hangzhou 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 July 18, 2026.
Use the filters below to find and compare flights from Seattle to Hangzhou that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 10/1

11:45 am-6:30 pm

1 stop39h 45m

Hangzhou

Mon 10/5

7:45 pm-10:05 am

1 stop29h 20m

$732

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 11/21

10:50 am-9:55 pm

1 stop19h 05m

Hangzhou

Sun 12/6

7:30 pm-9:10 am

1 stop29h 40m

$765

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 8/10

12:25 pm-6:30 pm

1 stop39h 05m

Hangzhou

Sun 8/16

3:55 pm-10:20 am

1 stop33h 25m

$921

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 8/31

12:36 pm-1:25 pm

2 stops33h 49m

Hangzhou

Wed 9/23

2:30 pm-8:42 pm

2 stops21h 12m

$922

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Fri 9/11

5:59 pm-10:35 pm

2 stops37h 36m

Hangzhou

Tue 9/15

11:25 am-8:38 pm

2 stops24h 13m

$949
Quickest round-trip

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 9/3

12:10 am-1:45 pm

1 stop22h 35m

Hangzhou

Tue 9/29

3:10 pm-3:15 pm

1 stop15h 05m

$956

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 9/10

12:10 am-1:45 pm

1 stop22h 35m

Hangzhou

Tue 9/15

3:10 pm-3:15 pm

1 stop15h 05m

$956
Cheapest one-way

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 9/29

3:45 pm-1:45 pm

2 stops31h 00m

$2,017

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 10/1

5:59 pm-11:10 am

2 stops26h 11m

$2,509
Quickest one-way

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 10/1

11:55 am-11:30 pm

1 stop20h 35m

$3,200

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 11 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Seattle-Hangzhou flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Hangzhou flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Hangzhou flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Hangzhou flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Hangzhou flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Hangzhou

Have a flexible travel schedule? Discover the best time to fly to Hangzhou from Seattle 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.

Reviews of airlines servicing Hangzhou

Get insights into the airlines that provide service to Hangzhou. 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 Hangzhou. Reviews last updated July 18, 2026.
Read reviews from past customers who have flown Cathay Pacific from Seattle to Hangzhou. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,415 reviews

Entertainment

7.8

Boarding

7.9

Overall

7.6

Crew

8.1

Comfort

7.6

Food

7.3

Reviews

1 / 20
10.0
Excellent

Ernest,Jun 2026

SFO - HKG

As good as can be expected for economy class international flight, on time very professional crew. The plane was clean bathrooms clean, decent food, connecting flight on time, with another tasty meal. Love Cathay Pacific
Cathay Pacific
7.6
Good
1,415 reviews
Cathay Pacific
7.6
Good
1,415 reviews

Entertainment

7.8

Boarding

7.9

Overall

7.6

Crew

8.1

Comfort

7.6

Food

7.3

Reviews

1 / 20
10.0
Excellent

Ernest,Jun 2026

SFO - HKG

As good as can be expected for economy class international flight, on time very professional crew. The plane was clean bathrooms clean, decent food, connecting flight on time, with another tasty meal. Love Cathay Pacific

Related info for your journey

Find useful and relevant information for your journey from Seattle to Hangzhou. 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 Seattle to Hangzhou?

    For as low as $732, Cathay Pacific can have you in Hangzhou from Seattle in 39h 45m. The distance from Seattle to Hangzhou is about 5805 mi.

  • What is the cheapest airline to fly from Seattle to Hangzhou round-trip?

    Flying on Cathay Pacific is currently your cheapest option to Hangzhou, with prices starting at $872.

  • Can I find deals for flights from Seattle to Hangzhou that include hotel bookings?

    Yes. In addition to deals on Seattle to Hangzhou flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Hangzhou?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Hangzhou.

  • Can I find deals for business class flights from Seattle to Hangzhou?

    Yes. Cheapflights offers flight deals from Seattle to Hangzhou by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Hangzhou by adding a car rental and/or hotel reservation to your travel itinerary.
Hangzhou car rentals
Shanghai Hongqiao Intl Airport car rentals
Hangzhou Airport car rentals

Top airline flying from Seattle to Hangzhou

Discover the top airline that operate flights from Seattle to Hangzhou. 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 July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$872Average$887FlexibilityNo cancel feeOn-time72%

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