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Cheap flights from Washington to Hangzhou from $422

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Hangzhou departing on 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
11:45 am - 10:35 pm
SEA
-
HGH
19h 50m
1 stop
Cathay Pacific Logo
8:00 am - 10:05 am
HGH
-
SEA
17h 05m
1 stop
$706Cathay Pacific
Mon, Apr 6 - Thu, Apr 9
Cathay Pacific Logo
8:41 am - 10:35 pm
SEA
-
HGH
22h 54m
2 stops
Cathay Pacific Logo
8:00 am - 10:05 am
HGH
-
SEA
17h 05m
1 stop
$775Cathay Pacific
Mon, Apr 6 - Thu, Apr 9
Cathay Pacific Logo
8:41 am - 10:35 pm
SEA
-
HGH
22h 54m
2 stops
Cathay Pacific Logo
8:00 am - 10:05 am
HGH
-
SEA
17h 05m
1 stop
$799Cathay Pacific
Mon, Apr 6 - Thu, Apr 9
Cathay Pacific Logo
7:55 pm - 10:10 am
SEA
-
HGH
22h 15m
2 stops
Cathay Pacific Logo
7:30 pm - 8:58 pm
HGH
-
SEA
41h 28m
2 stops
$851Cathay Pacific
Wed, Feb 18 - Sun, Mar 1
Cathay Pacific Logo
7:55 pm - 10:10 am
SEA
-
HGH
22h 15m
2 stops
Cathay Pacific Logo
3:45 pm - 8:47 pm
HGH
-
SEA
21h 02m
2 stops
$855Cathay Pacific
Mon, Feb 16 - Tue, Feb 24
Cathay Pacific Logo
6:21 pm - 2:30 pm
SEA
-
HGH
28h 09m
2 stops
Cathay Pacific Logo
9:15 am - 4:04 pm
HGH
-
SEA
22h 49m
2 stops
$857Cathay Pacific
Thu, Feb 19 - Thu, Mar 5
Cathay Pacific Logo
7:55 pm - 10:10 am
SEA
-
HGH
22h 15m
2 stops
Cathay Pacific Logo
3:45 pm - 8:58 pm
HGH
-
SEA
21h 13m
2 stops
$861Cathay Pacific
Tue, Feb 17 - Wed, Feb 25
Cathay Pacific Logo
6:21 pm - 10:10 am
SEA
-
HGH
23h 49m
2 stops
Cathay Pacific Logo
3:45 pm - 8:58 pm
HGH
-
SEA
21h 13m
2 stops
$870Cathay Pacific
Fri, Feb 20 - Mon, Mar 2
Multiple Airlines Logo
6:00 am - 11:25 am
PSC
-
HGH
38h 25m
3 stops
Multiple Airlines Logo
7:10 am - 5:34 pm
HGH
-
PSC
25h 24m
2 stops
$1,250Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Qatar Airways Logo
7:00 am - 4:05 pm
PSC
-
HGH
42h 05m
2 stops
Qatar Airways Logo
12:55 am - 5:34 pm
HGH
-
PSC
31h 39m
2 stops
$2,257Qatar Airways
Sun, Mar 29 - Wed, Apr 1

Korean Air flights from State of Washington to Hangzhou

Our best Korean Air deals on State of Washington to Hangzhou flight tickets
Korean Air
Feb 23
SEA11:00 amSeattle/Tacoma Intl
31h 55m
1 stop
HGH10:55 amHangzhou
Mar 2
HGH2:40 pmHangzhou
42h 18m
2 stops
SEA4:58 pmSeattle/Tacoma Intl
$917
Korean Air
Feb 11
SEA7:15 amSeattle/Tacoma Intl
38h 15m
2 stops
HGH1:30 pmHangzhou
Feb 27
HGH2:40 pmHangzhou
34h 20m
1 stop
SEA9:00 amSeattle/Tacoma Intl
$962
Korean Air
Feb 23
SEA11:00 amSeattle/Tacoma Intl
31h 55m
1 stop
HGH10:55 amHangzhou
Feb 27
HGH2:40 pmHangzhou
45h 50m
2 stops
SEA8:30 pmSeattle/Tacoma Intl
$967

Cathay Pacific flights from State of Washington to Hangzhou

Our best Cathay Pacific deals on State of Washington to Hangzhou flight tickets
Cathay Pacific
Apr 6
SEA11:45 amSeattle/Tacoma Intl
19h 50m
1 stop
HGH10:35 pmHangzhou
Apr 9
HGH8:00 amHangzhou
17h 05m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$706
Cathay Pacific
Apr 6
SEA8:41 amSeattle/Tacoma Intl
22h 54m
2 stops
HGH10:35 pmHangzhou
Apr 9
HGH8:00 amHangzhou
17h 05m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$775
Cathay Pacific
Apr 6
SEA8:41 amSeattle/Tacoma Intl
22h 54m
2 stops
HGH10:35 pmHangzhou
Apr 9
HGH8:00 amHangzhou
17h 05m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$799

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 February 4, 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

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 4/6

11:45 am-10:35 pm

1 stop19h 50m

Hangzhou

Thu 4/9

8:00 am-10:05 am

1 stop17h 05m

$706

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 4/6

8:41 am-10:35 pm

2 stops22h 54m

Hangzhou

Thu 4/9

8:00 am-10:05 am

1 stop17h 05m

$775

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 4/6

8:41 am-10:35 pm

2 stops22h 54m

Hangzhou

Thu 4/9

8:00 am-10:05 am

1 stop17h 05m

$799

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 2/18

7:55 pm-10:10 am

2 stops22h 15m

Hangzhou

Sun 3/1

7:30 pm-8:58 pm

2 stops41h 28m

$851

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 2/16

7:55 pm-10:10 am

2 stops22h 15m

Hangzhou

Tue 2/24

3:45 pm-8:47 pm

2 stops21h 02m

$855

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 2/19

6:21 pm-2:30 pm

2 stops28h 09m

Hangzhou

Thu 3/5

9:15 am-4:04 pm

2 stops22h 49m

$857

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 2/17

7:55 pm-10:10 am

2 stops22h 15m

Hangzhou

Wed 2/25

3:45 pm-8:58 pm

2 stops21h 13m

$861

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Fri 2/20

6:21 pm-10:10 am

2 stops23h 49m

Hangzhou

Mon 3/2

3:45 pm-8:58 pm

2 stops21h 13m

$870

PascoHangzhou

PSC - HGH

PSCHGH

Pasco Tri Cities

Thu 3/19

6:00 am-11:25 am

3 stops38h 25m

Hangzhou

Thu 3/26

7:10 am-5:34 pm

2 stops25h 24m

$1,250

PascoHangzhou

PSC - HGH

PSCHGH

Pasco Tri Cities

Sun 3/29

7:00 am-4:05 pm

2 stops42h 05m

Hangzhou

Wed 4/1

12:55 am-5:34 pm

2 stops31h 39m

$2,257

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?

Cathay Pacific is the most popular carrier operating from Washington to Hangzhou

What airlines fly to Hangzhou?

Delta, Asiana Airlines and Korean Air 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 63% of people opting to fly with this airline when traveling to Hangzhou. Keep in mind that there are 9 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 50m

Direct flights

None
The fastest flight from State of Washington to Hangzhou takes 19h 50m
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

  • 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
Hainan AirlinesPriceFrom $843Free CancellationRating
8.2
62 reviews
Search Hainan Airlines flights
Cathay PacificPriceFrom $872Free CancellationRating
7.6
1,158 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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