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$709+ Cheap flights from Seattle (SEA) to Hangzhou (HGH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HGH
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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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 November 26, 2025.

This Air China deal was found by Cheapflights users on 11/25. 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 Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:36 pmSEA - HGH
2 stops28h 59mMultiple Airlines
Sun 12/79:00 pmHGH - SEA
2 stops54h 55mMultiple Airlines
Deal found 11/25$892
This FlightHub deal was found by Cheapflights users on 11/25. 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.
Tue 12/210:00 amSEA - HGH
1 stop32h 15mHainan Airlines
Sun 12/77:35 pmHGH - SEA
2 stops52h 25mHainan Airlines
Deal found 11/25$1,151
This Justfly.com deal was found by Cheapflights users on 11/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:45 amSEA - HGH
1 stop45h 15mSingapore Airlines
Sun 12/711:10 pmHGH - SEA
1 stop48h 00mSingapore Airlines
Deal found 11/25$1,232
This oojo deal was found by Cheapflights users on 11/25. 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 12/112:10 amSEA - HGH
1 stop26h 05mEVA Air
Sun 12/77:35 pmHGH - SEA
1 stop14h 35mEVA Air
Deal found 11/25$1,353
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Wed 12/2411:10 pmSEA - HGH
2 stops43h 55mMultiple Airlines
Tue 1/138:30 amHGH - SEA
1 stop15h 30mMultiple Airlines
Deal found 11/26$1,427
This Korean Air deal was found by Cheapflights users on 11/26. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:00 amSEA - HGH
1 stop34h 30mKorean Air
Mon 1/122:40 pmHGH - SEA
1 stop34h 20mKorean Air
Deal found 11/26$1,505
This Kiwi.com deal was found by Cheapflights users on 11/26. 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 12/237:55 pmSEA - HGH
2 stops35h 45mMultiple Airlines
Tue 1/138:30 amHGH - SEA
1 stop15h 30mMultiple Airlines
Deal found 11/26$1,536
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Wed 12/247:55 pmSEA - HGH
2 stops35h 45mMultiple Airlines
Mon 1/123:05 pmHGH - SEA
1 stop14h 50mMultiple Airlines
Deal found 11/26$1,634

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 November 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$850
(FlightHub)

One-way from

$709
(Kiwi.com)
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
One-way flight from Seattle/Tacoma Intl to Hangzhou
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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 November 26, 2025.
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

Fri 3/27

12:10 am-1:45 pm

1 stop22h 35m

Hangzhou

Thu 4/23

3:10 pm-2:55 pm

1 stop14h 45m

$850

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 3/28

11:00 am-10:15 am

1 stop32h 15m

Hangzhou

Thu 4/23

8:00 am-10:10 am

1 stop17h 10m

$878

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

$905

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 1/22

5:53 pm-10:10 am

2 stops24h 17m

Hangzhou

Mon 1/26

3:45 pm-6:49 pm

2 stops43h 04m

$948

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 1/7

12:10 am-11:15 pm

3 stops31h 05m

Hangzhou

Thu 1/15

6:35 pm-1:55 pm

3 stops35h 20m

$956

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 1/22

10:05 am-11:25 am

2 stops33h 20m

Hangzhou

Mon 1/26

9:10 pm-8:00 am

1 stop26h 50m

$1,005

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 12/13

5:21 pm-1:40 pm

3 stops52h 19m

$709

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Fri 12/12

5:45 pm-6:10 pm

3 stops32h 25m

$889

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 12/13

11:30 pm-2:20 pm

1 stop22h 50m

$1,577

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

  • 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 $1,055). 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 November 26, 2025.
Read reviews from past customers who have flown Hainan Airlines 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
55 reviews

Crew

8.8

Entertainment

7.6

Overall

8.2

Comfort

8.0

Food

8.3

Boarding

8.5

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
55 reviews
Hainan Airlines
8.2
Very good
55 reviews

Crew

8.8

Entertainment

7.6

Overall

8.2

Comfort

8.0

Food

8.3

Boarding

8.5

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 $850, Asiana Airlines can have you in Hangzhou from Seattle in 22h 35m. The distance from Seattle to Hangzhou is about 5805 mi.

  • 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 $1,055). 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 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest$468Average$974FlexibilityNo cancel feeOn-time61%

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