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$852+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HGH
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap 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 January 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$852
(FlightHub)
Provider with most accurate pricing for Seattle/Tacoma Intl-Hangzhou flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Hangzhou flights.
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From Seattle/Tacoma Intl to Hangzhou
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Find 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 January 8, 2026.

This FlightHub deal was found by Cheapflights users on 1/8. 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 1/3112:10 amSEA - HGH
1 stop21h 35mAsiana Airlines
Fri 2/63:05 pmHGH - SEA
1 stop14h 50mAsiana Airlines
Deal found 1/8$852
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 2/310:00 amSEA - HGH
1 stop17h 55mHainan Airlines
Sat 2/78:30 amHGH - SEA
1 stop15h 30mHainan Airlines
Deal found 1/8$891
This Asiana Airlines deal was found by Cheapflights users on 1/6. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2112:10 amSEA - HGH
1 stop21h 35mAsiana Airlines
Mon 1/263:05 pmHGH - SEA
1 stop14h 50mAsiana Airlines
Deal found 1/6$906
This FlightHub deal was found by Cheapflights users on 1/8. 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 1/3112:10 amSEA - HGH
1 stop21h 35mAsiana Airlines
Sun 2/83:05 pmHGH - SEA
1 stop14h 50mAsiana Airlines
Deal found 1/8$908
This Trip.com deal was found by Cheapflights users on 1/8. 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.
Sat 2/2812:10 amSEA - HGH
1 stop21h 35mAsiana Airlines
Wed 3/183:05 pmHGH - SEA
1 stop14h 50mAsiana Airlines
Deal found 1/8$912
This Mytrip deal was found by Cheapflights users on 1/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/112:10 amSEA - HGH
2 stops31h 35mMultiple Airlines
Sat 2/77:30 pmHGH - SEA
2 stops34h 25mMultiple Airlines
Deal found 1/8$915
This Expedia deal was found by Cheapflights users on 1/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/22:40 pmSEA - HGH
1 stop32h 05mMultiple Airlines
Sat 4/117:25 amHGH - SEA
1 stop16h 35mMultiple Airlines
Deal found 1/7$936
This oojo deal was found by Cheapflights users on 1/8. 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.
Sun 3/17:29 pmSEA - HGH
2 stops35h 01mCathay Pacific
Wed 3/188:00 amHGH - SEA
2 stops25h 53mCathay Pacific
Deal found 1/8$947
This FlightHub deal was found by Cheapflights users on 1/8. 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 3/112:10 amSEA - HGH
2 stops22h 25mMultiple Airlines
Wed 3/187:35 pmHGH - SEA
1 stop14h 35mMultiple Airlines
Deal found 1/8$954
This oojo deal was found by Cheapflights users on 1/8. 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.
Mon 3/27:55 pmSEA - HGH
2 stops26h 35mCathay Pacific
Wed 3/188:00 amHGH - SEA
2 stops25h 53mCathay Pacific
Deal found 1/8$955
This oojo deal was found by Cheapflights users on 1/7. 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 4/28:41 amSEA - HGH
2 stops34h 29mCathay Pacific
Sat 4/118:00 amHGH - SEA
1 stop17h 10mCathay Pacific
Deal found 1/7$997
This Cathay Pacific deal was found by Cheapflights users on 1/7. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/223:45 pmSEA - HGH
2 stops26h 25mCathay Pacific
Mon 1/267:30 pmHGH - SEA
2 stops39h 19mCathay Pacific
Deal found 1/7$1,012

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 January 8, 2026.
Use the filters below to find and compare flights from Seattle to Hangzhou that are best for you.

Fly from

Seattle

Fly to

Hangzhou

Route

Depart

Return

Price

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 3/1

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Wed 3/18

3:05 pm-2:55 pm

1 stop14h 50m

$852

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 2/1

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Fri 2/6

3:05 pm-1:55 pm

1 stop14h 50m

$852

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 1/31

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Fri 2/6

3:05 pm-1:55 pm

1 stop14h 50m

$852

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 2/3

10:00 am-7:55 pm

1 stop17h 55m

Hangzhou

Sat 2/7

8:30 am-8:00 am

1 stop15h 30m

$891

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 1/21

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Mon 1/26

3:05 pm-1:55 pm

1 stop14h 50m

$906

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 1/31

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Sun 2/8

3:05 pm-1:55 pm

1 stop14h 50m

$908

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 2/1

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Sun 2/8

3:05 pm-1:55 pm

1 stop14h 50m

$908

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 2/2

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Sun 2/8

3:05 pm-1:55 pm

1 stop14h 50m

$908

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 3/1

7:29 pm-10:30 pm

2 stops35h 01m

Hangzhou

Wed 3/18

8:00 am-6:53 pm

2 stops25h 53m

$947

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 3/2

7:55 pm-2:30 pm

2 stops26h 35m

Hangzhou

Wed 3/18

8:00 am-6:53 pm

2 stops25h 53m

$955

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 11 results
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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Hangzhou

What is the cheapest month to book a flight from Seattle to Hangzhou?

Currently, March is the cheapest month in which you can book a flight from Seattle to Hangzhou (average of $435). Flying from Seattle to Hangzhou in July is currently the most expensive (average of $1,130). 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.

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 January 8, 2026.
Read reviews from past customers who have flown Hainan Airlines and 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.
Hainan Airlines
8.2
Very good
62 reviews

Crew

8.9

Comfort

8.1

Boarding

8.5

Food

8.3

Overall

8.2

Entertainment

7.7

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Hainan Airlines
8.2
Very good
62 reviews
Hainan Airlines
8.2
Very good
62 reviews

Crew

8.9

Comfort

8.1

Boarding

8.5

Food

8.3

Overall

8.2

Entertainment

7.7

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Cathay Pacific
7.6
Good
1,126 reviews
Hainan Airlines
8.2
Very good
62 reviews

Crew

8.9

Comfort

8.1

Boarding

8.5

Food

8.3

Overall

8.2

Entertainment

7.7

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.

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 $891, Asiana Airlines can have you in Hangzhou from Seattle in 17h 55m. The distance from Seattle to Hangzhou is about 5805 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

  • What is the cheapest month to book a flight from Seattle to Hangzhou?

    Currently, March is the cheapest month in which you can book a flight from Seattle to Hangzhou (average of $435). Flying from Seattle to Hangzhou in July is currently the most expensive (average of $1,130). 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

Browse thousands of different options on Cheapflights for your next trip

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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 2 airlines flying from Seattle to Hangzhou

Discover the top 2 airlines 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest$843Average$974FlexibilityNo cancel feeOn-time61%
Cathay PacificCheapest$872Average$887FlexibilityNo cancel feeOn-time72%

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