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$749+ 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HGH
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 6, 2025.

This FlightHub deal was found by Cheapflights users on 11/5. 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 12/112:10 amSEA - HGH
1 stop21h 35mAsiana Airlines
Sun 12/73:05 pmHGH - SEA
1 stop14h 50mAsiana Airlines
Deal found 11/5$749
This Air China deal was found by Cheapflights users on 11/5. 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 11/5$892
This FlightHub deal was found by Cheapflights users on 11/5. 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 stop17h 55mHainan Airlines
Sun 12/77:35 pmHGH - SEA
2 stops52h 25mHainan Airlines
Deal found 11/5$1,061
This Justfly.com deal was found by Cheapflights users on 11/6. 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 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 11/6$1,327
This Emirates deal was found by Cheapflights users on 11/4. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/24:05 pmSEA - HGH
1 stop31h 55mEmirates
Sat 12/612:10 amHGH - SEA
1 stop28h 25mEmirates
Deal found 11/4$1,794
This Air Canada deal was found by Cheapflights users on 11/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/195:50 amSEA - HGH
2 stops24h 40mMultiple Airlines
Sun 1/43:45 pmHGH - SEA
2 stops22h 21mMultiple Airlines
Deal found 11/6$2,564

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 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$749
(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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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 6, 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

Sun 3/1

7:55 pm-10:10 am

2 stops22h 15m

Hangzhou

Thu 3/5

8:00 am-2:25 pm

2 stops22h 25m

$942

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 12/2

10:00 am-7:55 pm

1 stop17h 55m

Hangzhou

Sun 12/7

7:35 pm-8:00 am

2 stops52h 25m

$1,061

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 12/2

8:45 am-10:00 pm

1 stop45h 15m

Hangzhou

Sun 12/7

11:10 pm-7:10 am

1 stop48h 00m

$1,328

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 12/1

12:10 am-6:15 pm

1 stop26h 05m

Hangzhou

Sun 12/7

10:00 pm-6:10 pm

2 stops36h 10m

$1,345

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 3/1

8:45 am-9:55 pm

1 stop45h 10m

Hangzhou

Thu 3/5

11:10 pm-7:10 am

1 stop24h 00m

$1,480

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 12/22

11:10 pm-1:40 pm

2 stops46h 30m

$904

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 12/21

1:25 pm-1:35 pm

3 stops56h 10m

$1,102

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 12/22

11:00 am-10:55 am

1 stop31h 55m

$1,282

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 12/1

11:10 pm-10:55 pm

3 stops55h 45m

$1,870

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 12/1

11:00 am-10:55 am

1 stop31h 55m

$4,002

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

  • 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 November 6, 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
8.1
Very good
52 reviews

Food

8.2

Crew

8.8

Comfort

7.9

Entertainment

7.5

Overall

8.1

Boarding

8.4

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
8.1
Very good
52 reviews
Hainan Airlines
8.1
Very good
52 reviews

Food

8.2

Crew

8.8

Comfort

7.9

Entertainment

7.5

Overall

8.1

Boarding

8.4

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 $1,061, Cathay Pacific 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 $1,065). 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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Complete your trip

Complete your trip to Hangzhou by adding a car rental and/or hotel reservation to your travel itinerary.
Hangzhou car rentals
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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest$640Average$864FlexibilityNo cancel feeOn-time61%

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