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Cheap flights from Washington to Hangzhou from $759

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Hangzhou departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Washington to Hangzhou

Cheap round-trip flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
12:25 pm - 10:35 pmSEA  Seattle/Tacoma Intl-HGH Hangzhou
19h 10m1 stop Hong Kong Intl
Cathay Pacific Logo
7:30 pm - 9:10 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
29h 40m1 stop Hong Kong Intl
$759Cathay Pacific
Wed, Sep 9 - Wed, Nov 25
Cathay Pacific Logo
12:25 pm - 10:35 pmSEA  Seattle/Tacoma Intl-HGH Hangzhou
19h 10m1 stop Hong Kong Intl
Cathay Pacific Logo
7:30 pm - 9:10 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
29h 40m1 stop Hong Kong Intl
$760Cathay Pacific
Wed, Sep 9 - Wed, Nov 25
Cathay Pacific Logo
10:50 am - 10:10 amSEA  Seattle/Tacoma Intl-HGH Hangzhou
31h 20m1 stop Hong Kong Intl
Cathay Pacific Logo
3:45 pm - 9:10 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
33h 25m1 stop Hong Kong Intl
$760Cathay Pacific
Mon, Nov 9 - Mon, Nov 16
Cathay Pacific Logo
10:50 am - 10:10 amSEA  Seattle/Tacoma Intl-HGH Hangzhou
31h 20m1 stop Hong Kong Intl
Cathay Pacific Logo
8:00 am - 9:10 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
17h 10m1 stop Hong Kong Intl
$760Cathay Pacific
Mon, Nov 9 - Mon, Nov 16
Cathay Pacific Logo
10:50 am - 10:10 amSEA  Seattle/Tacoma Intl-HGH Hangzhou
31h 20m1 stop Hong Kong Intl
Cathay Pacific Logo
3:45 pm - 9:10 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
33h 25m1 stop Hong Kong Intl
$760Cathay Pacific
Tue, Nov 3 - Tue, Nov 17
Cathay Pacific Logo
11:45 am - 6:30 pmSEA  Seattle/Tacoma Intl-HGH Hangzhou
39h 45m1 stop Hong Kong Intl
Cathay Pacific Logo
7:45 pm - 10:05 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
29h 20m1 stop Hong Kong Intl
$791Cathay Pacific
Thu, Oct 1 - Mon, Oct 5
Cathay Pacific Logo
10:50 am - 2:30 pmSEA  Seattle/Tacoma Intl-HGH Hangzhou
35h 40m1 stop Hong Kong Intl
Cathay Pacific Logo
11:25 am - 9:10 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
37h 45m1 stop Hong Kong Intl
$791Cathay Pacific
Thu, Nov 12 - Mon, Nov 16
Multiple Airlines Logo
7:18 am - 10:35 pmSEA  Seattle/Tacoma Intl-HGH Hangzhou
24h 17m2 stops San Francisco Hong Kong Intl
Multiple Airlines Logo
8:00 am - 9:10 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
17h 10m1 stop Hong Kong Intl
$860Multiple Airlines
Wed, Sep 9 - Wed, Nov 25
Multiple Airlines Logo
5:45 pm - 10:10 amSEA  Seattle/Tacoma Intl-HGH Hangzhou
24h 25m2 stops Vancouver Intl Hong Kong Intl
Multiple Airlines Logo
3:45 pm - 9:10 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
33h 25m1 stop Hong Kong Intl
$860Multiple Airlines
Mon, Nov 9 - Mon, Nov 16
Multiple Airlines Logo
7:18 am - 10:35 pmSEA  Seattle/Tacoma Intl-HGH Hangzhou
24h 17m2 stops San Francisco Hong Kong Intl
Multiple Airlines Logo
8:00 am - 9:10 amHGH  Hangzhou-SEA Seattle/Tacoma Intl
17h 10m1 stop Hong Kong Intl
$861Multiple Airlines
Wed, Sep 9 - Wed, Nov 25

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Cathay Pacific flights from State of Washington to Hangzhou

Our best Cathay Pacific deals on State of Washington to Hangzhou flight tickets
Cathay Pacific
Sep 9
SEA12:25 pmSeattle/Tacoma Intl
19h 10m
1 stop
HGH10:35 pmHangzhou
Nov 25
HGH7:30 pmHangzhou
29h 40m
1 stop
SEA9:10 amSeattle/Tacoma Intl
$759
Cathay Pacific
Sep 9
SEA12:25 pmSeattle/Tacoma Intl
19h 10m
1 stop
HGH10:35 pmHangzhou
Nov 25
HGH7:30 pmHangzhou
29h 40m
1 stop
SEA9:10 amSeattle/Tacoma Intl
$760
Cathay Pacific
Aug 17
SEA12:25 pmSeattle/Tacoma Intl
39h 05m
1 stop
HGH6:30 pmHangzhou
Sep 2
HGH3:55 pmHangzhou
33h 25m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$774

Hainan Airlines flights from State of Washington to Hangzhou

Our best Hainan Airlines deals on State of Washington to Hangzhou flight tickets
Hainan Airlines
Sep 5
SEA11:00 amSeattle/Tacoma Intl
36h 15m
1 stop
HGH2:15 pmHangzhou
Sep 11
HGH9:25 pmHangzhou
26h 35m
1 stop
SEA9:00 amSeattle/Tacoma Intl
$876
Hainan Airlines
Sep 5
SEA11:00 amSeattle/Tacoma Intl
32h 15m
1 stop
HGH10:15 amHangzhou
Sep 12
HGH7:30 amHangzhou
16h 30m
1 stop
SEA9:00 amSeattle/Tacoma Intl
$877
Hainan Airlines
Dec 26
SEA10:20 amSeattle/Tacoma Intl
35h 10m
1 stop
HGH1:30 pmHangzhou
Jan 6
HGH7:35 amHangzhou
40h 30m
3 stops
SEA8:05 amSeattle/Tacoma Intl
$1,765

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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, momondo users made 832,500 searches. Data last updated August 10, 2026.
Use the filters below to find and compare flights from Washington to Hangzhou that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

SEAHGH

Seattle/Tacoma Intl

Wed 9/9

12:25 pm-10:35 pm

1 stop19h 10m

Hangzhou

Wed 11/25

7:30 pm-9:10 am

1 stop29h 40m

$759

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

SEAHGH

Seattle/Tacoma Intl

Wed 9/9

12:25 pm-10:35 pm

1 stop19h 10m

Hangzhou

Wed 11/25

7:30 pm-9:10 am

1 stop29h 40m

$760

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

SEAHGH

Seattle/Tacoma Intl

Mon 11/9

10:50 am-10:10 am

1 stop31h 20m

Hangzhou

Mon 11/16

3:45 pm-9:10 am

1 stop33h 25m

$760

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

SEAHGH

Seattle/Tacoma Intl

Mon 11/9

10:50 am-10:10 am

1 stop31h 20m

Hangzhou

Mon 11/16

8:00 am-9:10 am

1 stop17h 10m

$760

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

SEAHGH

Seattle/Tacoma Intl

Tue 11/3

10:50 am-10:10 am

1 stop31h 20m

Hangzhou

Tue 11/17

3:45 pm-9:10 am

1 stop33h 25m

$760

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

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

$791

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

SEAHGH

Seattle/Tacoma Intl

Thu 11/12

10:50 am-2:30 pm

1 stop35h 40m

Hangzhou

Mon 11/16

11:25 am-9:10 am

1 stop37h 45m

$791
Quickest round-trip

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

SEAHGH

Seattle/Tacoma Intl

Wed 9/9

7:18 am-10:35 pm

2 stops24h 17m

Hangzhou

Wed 11/25

8:00 am-9:10 am

1 stop17h 10m

$860

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

SEAHGH

Seattle/Tacoma Intl

Mon 11/9

5:45 pm-10:10 am

2 stops24h 25m

Hangzhou

Mon 11/16

3:45 pm-9:10 am

1 stop33h 25m

$860

SeattleHangzhou

SEA Seattle/Tacoma Intl - HGH Hangzhou

SEAHGH

Seattle/Tacoma Intl

Wed 9/9

7:18 am-10:35 pm

2 stops24h 17m

Hangzhou

Wed 11/25

8:00 am-9:10 am

1 stop17h 10m

$861

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Hangzhou from

How to get the cheapest flight ticket from State of Washington to Hangzhou

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington to Hangzhou?

Asiana Airlines is the most popular carrier operating from Washington to Hangzhou

What airlines fly to Hangzhou?

Delta, Asiana Airlines and Cathay Pacific are the top three most popular airlines that fly to Hangzhou from State of Washington according to our data. Delta is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Hangzhou. Keep in mind that there are 7 different airlines that fly to Hangzhou on a routine basis, so you have a few additional options to choose from.

Cheap State of Washington to Hangzhou flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Hangzhou

Fastest flight time

19h 10m

Direct flights

None
The fastest flight from State of Washington to Hangzhou takes 19h 10m
There are no direct flights from State of Washington to Hangzhou. There are no popular flight routes from State of Washington to Hangzhou.
Search flight deals

Frequently asked questions about flying from Washington to Hangzhou

  • When did momondo last update prices for flights from Washington to Hangzhou Airport?

    Prices for flights from Washington to Hangzhou Airport were last updated today.

  • How many operators does momondo search for flights from Washington to Hangzhou Airport?

  • How old do you have to be to fly from Washington to Hangzhou Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Hangzhou Airport.

  • What documentation or ID do you need to fly to Hangzhou Airport?

    The necessary travel and health documents for your Hangzhou Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Hangzhou

Compare and see reviews for airlines that fly from State of Washington to Hangzhou with momondo
Airline
Rating
Free Cancellation
Price
Cathay PacificPriceFrom $872Free CancellationRating
7.5
1,445 reviews
Search Cathay Pacific flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Hangzhou?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to Hangzhou for you.

Can I find flights from Washington to Hangzhou with flexible booking policies on momondo?

momondo does allow users to show only those flights to Hangzhou from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Hangzhou?

momondo provides multiple filters to help you find the best flight to Hangzhou from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington to Hangzhou right now. Can momondo alert me if prices change?

Price alerts on flights to Hangzhou from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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