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Cheap flights from Seattle to Hangzhou from $512

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Hangzhou departing on 7/21. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Hangzhou

Cheap round-trip flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
10:50 am - 10:10 am
SEA
-
HGH
31h 20m
1 stop
Cathay Pacific Logo
3:45 pm - 9:10 am
HGH
-
SEA
33h 25m
1 stop
$709Cathay Pacific
Mon, Nov 30 - Wed, Dec 16
Cathay Pacific Logo
12:25 pm - 10:35 pm
SEA
-
HGH
19h 10m
1 stop
Cathay Pacific Logo
8:00 am - 10:05 am
HGH
-
SEA
17h 05m
1 stop
$724Cathay Pacific
Tue, Sep 1 - Tue, Sep 29
Cathay Pacific Logo
10:50 am - 10:10 am
SEA
-
HGH
31h 20m
1 stop
Cathay Pacific Logo
8:00 am - 9:10 am
HGH
-
SEA
17h 10m
1 stop
$727Cathay Pacific
Mon, Nov 2 - Mon, Nov 16
Cathay Pacific Logo
12:25 pm - 10:10 am
SEA
-
HGH
30h 45m
1 stop
Cathay Pacific Logo
7:45 pm - 10:05 am
HGH
-
SEA
29h 20m
1 stop
$728Cathay Pacific
Mon, Aug 31 - Mon, Sep 28
Cathay Pacific Logo
10:50 am - 6:15 pm
SEA
-
HGH
39h 25m
1 stop
Cathay Pacific Logo
8:00 am - 9:10 am
HGH
-
SEA
17h 10m
1 stop
$732Cathay Pacific
Tue, Nov 3 - Thu, Nov 12
Cathay Pacific Logo
11:50 am - 2:30 pm
SEA
-
HGH
35h 40m
1 stop
Cathay Pacific Logo
11:25 am - 9:10 am
HGH
-
SEA
37h 45m
1 stop
$759Cathay Pacific
Sat, Oct 31 - Sun, Nov 15
Cathay Pacific Logo
12:25 pm - 10:35 pm
SEA
-
HGH
19h 10m
1 stop
Cathay Pacific Logo
8:00 am - 10:05 am
HGH
-
SEA
17h 05m
1 stop
$774Cathay Pacific
Sat, Aug 29 - Wed, Sep 23
Cathay Pacific Logo
10:50 am - 10:30 pm
SEA
-
HGH
19h 40m
1 stop
Cathay Pacific Logo
8:00 am - 9:10 am
HGH
-
SEA
17h 10m
1 stop
$776Cathay Pacific
Tue, Jan 5 - Tue, Jan 19
Cathay Pacific Logo
11:50 am - 10:10 am
SEA
-
HGH
31h 20m
1 stop
Cathay Pacific Logo
11:25 am - 9:10 am
HGH
-
SEA
37h 45m
1 stop
$782Cathay Pacific
Sat, Oct 31 - Tue, Nov 17
Cathay Pacific Logo
10:50 am - 10:30 pm
SEA
-
HGH
19h 40m
1 stop
Cathay Pacific Logo
8:00 am - 9:10 am
HGH
-
SEA
17h 10m
1 stop
$784Cathay Pacific
Mon, Jan 4 - Tue, Jan 19

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Cathay Pacific flights from Seattle to Hangzhou

Our best Cathay Pacific deals on Seattle to Hangzhou flight tickets
Cathay Pacific
Nov 30
SEA10:50 amSeattle/Tacoma Intl
31h 20m
1 stop
HGH10:10 amHangzhou
Dec 16
HGH3:45 pmHangzhou
33h 25m
1 stop
SEA9:10 amSeattle/Tacoma Intl
$709
Cathay Pacific
Sep 1
SEA12:25 pmSeattle/Tacoma Intl
19h 10m
1 stop
HGH10:35 pmHangzhou
Sep 29
HGH8:00 amHangzhou
17h 05m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$724
Cathay Pacific
Nov 2
SEA10:50 amSeattle/Tacoma Intl
31h 20m
1 stop
HGH10:10 amHangzhou
Nov 16
HGH8:00 amHangzhou
17h 10m
1 stop
SEA9:10 amSeattle/Tacoma Intl
$727

Korean Air flights from Seattle to Hangzhou

Our best Korean Air deals on Seattle to Hangzhou flight tickets
Korean Air
Sep 2
SEA12:50 pmSeattle/Tacoma Intl
33h 35m
1 stop
HGH1:25 pmHangzhou
Sep 23
HGH2:30 pmHangzhou
35h 10m
1 stop
SEA10:40 amSeattle/Tacoma Intl
$906
Korean Air
Aug 31
SEA2:50 pmSeattle/Tacoma Intl
31h 35m
2 stops
HGH1:25 pmHangzhou
Sep 23
HGH2:30 pmHangzhou
35h 10m
1 stop
SEA10:40 amSeattle/Tacoma Intl
$911

momondo 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, momondo users made 832,500 searches. Data last updated July 16, 2026.
Use the filters below to find and compare flights from Seattle to Hangzhou that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 11/30

10:50 am-10:10 am

1 stop31h 20m

Hangzhou

Wed 12/16

3:45 pm-9:10 am

1 stop33h 25m

$709
Quickest round-trip

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 9/1

12:25 pm-10:35 pm

1 stop19h 10m

Hangzhou

Tue 9/29

8:00 am-10:05 am

1 stop17h 05m

$724

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 11/2

10:50 am-10:10 am

1 stop31h 20m

Hangzhou

Mon 11/16

8:00 am-9:10 am

1 stop17h 10m

$727

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 8/31

12:25 pm-10:10 am

1 stop30h 45m

Hangzhou

Mon 9/28

7:45 pm-10:05 am

1 stop29h 20m

$728

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 11/3

10:50 am-6:15 pm

1 stop39h 25m

Hangzhou

Thu 11/12

8:00 am-9:10 am

1 stop17h 10m

$732

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 10/31

11:50 am-2:30 pm

1 stop35h 40m

Hangzhou

Sun 11/15

11:25 am-9:10 am

1 stop37h 45m

$759

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 8/29

12:25 pm-10:35 pm

1 stop19h 10m

Hangzhou

Wed 9/23

8:00 am-10:05 am

1 stop17h 05m

$774

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 1/5

10:50 am-10:30 pm

1 stop19h 40m

Hangzhou

Tue 1/19

8:00 am-9:10 am

1 stop17h 10m

$776

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 10/31

11:50 am-10:10 am

1 stop31h 20m

Hangzhou

Tue 11/17

11:25 am-9:10 am

1 stop37h 45m

$782

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 1/4

10:50 am-10:30 pm

1 stop19h 40m

Hangzhou

Tue 1/19

8:00 am-9:10 am

1 stop17h 10m

$784

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 Seattle 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 Seattle/Tacoma Intl to Hangzhou?

Cathay Pacific is the most popular carrier operating from Seattle/Tacoma Intl 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 Seattle 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.

When to book flights from Seattle to Hangzhou

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Hangzhou according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Hangzhou (SEA to HGH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Hangzhou

Fastest flight time

19h 10m

Direct flights

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

Frequently asked questions about flying from Seattle to Hangzhou

  • How far is Seattle/Tacoma Intl to Hangzhou by plane?

    Seattle/Tacoma Intl and Hangzhou are 5802.6 mi apart from one another. 19h 10m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Hangzhou Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Hangzhou Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Hangzhou Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Hangzhou Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Hangzhou Airport.

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

    The travel and health documents required for your trip to Hangzhou Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Hangzhou Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Hangzhou?

Best airlines flying from Seattle to Hangzhou

Compare and see reviews for airlines that fly from Seattle to Hangzhou with momondo
Airline
Rating
Free Cancellation
Price
Cathay PacificPriceFrom $872Free CancellationRating
7.6
1,413 reviews
Search Cathay Pacific flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Hangzhou. momondo saves you time and could save you money on your trip.

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

All flight searches from Seattle to Hangzhou on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Seattle and Hangzhou by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Seattle to Hangzhou now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Hangzhou and let you know when they change.

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