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$390+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HGH
nov. 21 — nov. 281
vie. 11/21
vie. 11/28
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 octubre 22, 2025.

This FlightHub deal was found by Cheapflights users on 10/21. 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.
mar. 11/2512:10 amSEA - HGH
1 stop21h 35mAsiana Airlines
sáb. 12/133:05 pmHGH - SEA
1 stop14h 50mAsiana Airlines
Deal found 10/21$693
This FlightHub deal was found by Cheapflights users on 10/20. 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.
mar. 11/412:10 amSEA - HGH
1 stop21h 35mAsiana Airlines
dom. 11/163:05 pmHGH - SEA
1 stop14h 50mAsiana Airlines
Deal found 10/20$694
This FlightHub deal was found by Cheapflights users on 10/20. 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.
lun. 12/112:10 amSEA - HGH
1 stop21h 35mAsiana Airlines
dom. 12/73:05 pmHGH - SEA
1 stop14h 50mAsiana Airlines
Deal found 10/20$749
This Ovago deal was found by Cheapflights users on 10/20. 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.
jue. 11/610:05 amSEA - HGH
2 stops33h 20mHainan Airlines
vie. 11/1411:30 amHGH - SEA
1 stop36h 30mHainan Airlines
Deal found 10/20$910
This FlightHub deal was found by Cheapflights users on 10/21. 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.
mar. 11/2512:10 amSEA - HGH
2 stops28h 00mMultiple Airlines
sáb. 12/133:05 pmHGH - SEA
1 stop14h 50mMultiple Airlines
Deal found 10/21$925
This Expedia deal was found by Cheapflights users on 10/20. 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.
jue. 12/45:59 pmSEA - HGH
2 stops29h 31mMultiple Airlines
jue. 12/114:40 pmHGH - SEA
2 stops33h 12mMultiple Airlines
Deal found 10/20$934
This KAYAK deal was found by Cheapflights users on 10/20. 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.
mié. 11/55:30 pmSEA - HGH
2 stops24h 40mCathay Pacific
dom. 11/167:30 pmHGH - SEA
2 stops39h 17mCathay Pacific
Deal found 10/20$944
This oojo deal was found by Cheapflights users on 10/21. 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.
mié. 11/267:56 pmSEA - HGH
2 stops22h 14mCathay Pacific
sáb. 12/138:00 amHGH - SEA
2 stops22h 36mCathay Pacific
Deal found 10/21$954
This Korean Air deal was found by Cheapflights users on 10/20. 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.
mié. 11/511:00 amSEA - HGH
1 stop34h 30mKorean Air
vie. 11/142:40 pmHGH - SEA
1 stop34h 20mKorean Air
Deal found 10/20$955
This Ovago deal was found by Cheapflights users on 10/20. 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.
mar. 12/24:59 pmSEA - HGH
2 stops26h 11mMultiple Airlines
dom. 12/76:50 pmHGH - SEA
2 stops31h 11mMultiple Airlines
Deal found 10/20$956
This Travelocity deal was found by Cheapflights users on 10/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/511:45 pmSEA - HGH
2 stops28h 25mMultiple Airlines
sáb. 11/157:30 amHGH - SEA
1 stop16h 30mMultiple Airlines
Deal found 10/20$968

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 octubre 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$693
(FlightHub)

One-way from

$390
(FlightHub)
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
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 octubre 22, 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

mar. 11/25

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

sáb. 12/13

3:05 pm-1:55 pm

1 stop14h 50m

$693

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

jue. 3/19

12:45 am-8:10 pm

2 stops28h 25m

Hangzhou

vie. 4/3

9:40 am-4:10 pm

1 stop21h 30m

$837

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

jue. 11/6

10:05 am-2:25 pm

2 stops36h 20m

Hangzhou

sáb. 11/15

7:30 am-8:00 am

1 stop16h 30m

$910

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

mar. 11/25

12:10 am-8:10 pm

2 stops28h 00m

Hangzhou

sáb. 12/13

3:05 pm-1:55 pm

1 stop14h 50m

$925

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

jue. 12/4

5:59 pm-3:30 pm

2 stops29h 31m

Hangzhou

jue. 12/11

4:40 pm-9:52 am

2 stops33h 12m

$934

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

dom. 3/1

7:55 pm-10:30 pm

2 stops34h 35m

Hangzhou

jue. 3/5

11:25 am-6:52 pm

2 stops23h 27m

$942

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

jue. 11/6

4:30 pm-10:10 am

2 stops25h 40m

Hangzhou

dom. 11/16

7:30 pm-6:47 pm

2 stops39h 17m

$944

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

mié. 11/26

7:56 pm-10:10 am

2 stops22h 14m

Hangzhou

sáb. 12/13

8:00 am-2:36 pm

2 stops22h 36m

$954

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

mié. 11/5

11:00 am-1:30 pm

1 stop34h 30m

Hangzhou

vie. 11/14

2:40 pm-9:00 am

1 stop34h 20m

$955

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

mié. 11/5

5:57 pm-10:10 am

2 stops24h 13m

Hangzhou

sáb. 11/15

11:25 am-6:47 pm

2 stops23h 22m

$960

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 14 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 $1,065). 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 octubre 22, 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
46 reviews

Entertainment

7.5

Boarding

8.5

Food

8.3

Overall

8.2

Comfort

8.0

Crew

8.8

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
46 reviews
Hainan Airlines
8.2
Very good
46 reviews

Entertainment

7.5

Boarding

8.5

Food

8.3

Overall

8.2

Comfort

8.0

Crew

8.8

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 $693, Asiana Airlines can have you in Hangzhou from Seattle in 21h 35m. 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 $1,065). 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

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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 octubre 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest$640Average$956FlexibilityNo cancel feeOn-time61%

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