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Cheap flights from Seattle to Hangzhou from $502

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 4/25. 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 Seattle to Hangzhou

Cheap round-trip flights

Enter your travel dates to find the best prices.
Asiana Airlines Logo
12:10 am - 1:45 pm
SEA
-
HGH
22h 35m
1 stop
Asiana Airlines Logo
3:10 pm - 3:15 pm
HGH
-
SEA
15h 05m
1 stop
$865Asiana Airlines
Sun, Sep 6 - Tue, Sep 29
Cathay Pacific Logo
11:45 am - 10:35 pm
SEA
-
HGH
19h 50m
1 stop
Cathay Pacific Logo
7:45 pm - 10:05 am
HGH
-
SEA
29h 20m
1 stop
$891Cathay Pacific
Wed, Apr 29 - Sun, May 10
Cathay Pacific Logo
12:25 pm - 10:35 pm
SEA
-
HGH
19h 10m
1 stop
Cathay Pacific Logo
3:55 pm - 10:05 am
HGH
-
SEA
33h 10m
1 stop
$896Cathay Pacific
Mon, Sep 7 - Wed, Sep 30
Korean Air Logo
6:55 pm - 1:25 pm
SEA
-
HGH
27h 30m
2 stops
Korean Air Logo
2:30 pm - 10:40 am
HGH
-
SEA
35h 10m
1 stop
$911Korean Air
Mon, Sep 7 - Mon, Sep 28
Korean Air Logo
12:50 pm - 1:25 pm
SEA
-
HGH
33h 35m
1 stop
Korean Air Logo
2:30 pm - 8:28 pm
HGH
-
SEA
20h 58m
2 stops
$917Korean Air
Wed, Sep 9 - Mon, Sep 28
Korean Air Logo
6:55 pm - 1:25 pm
SEA
-
HGH
27h 30m
2 stops
Korean Air Logo
2:30 pm - 8:28 pm
HGH
-
SEA
20h 58m
2 stops
$922Korean Air
Mon, Sep 7 - Mon, Sep 28
Korean Air Logo
7:59 pm - 1:25 pm
SEA
-
HGH
50h 26m
2 stops
Korean Air Logo
2:30 pm - 10:40 am
HGH
-
SEA
35h 10m
1 stop
$924Korean Air
Tue, Sep 8 - Mon, Sep 28
Korean Air Logo
2:30 pm - 1:25 pm
SEA
-
HGH
55h 55m
2 stops
Korean Air Logo
2:30 pm - 8:28 pm
HGH
-
SEA
20h 58m
2 stops
$930Korean Air
Tue, Sep 8 - Mon, Sep 28
Hainan Airlines Logo
11:00 am - 8:10 pm
SEA
-
HGH
18h 10m
1 stop
Hainan Airlines Logo
9:25 pm - 9:00 am
HGH
-
SEA
26h 35m
1 stop
$942Hainan Airlines
Sat, Sep 5 - Fri, Oct 2
Asiana Airlines Logo
12:10 am - 1:45 pm
SEA
-
HGH
22h 35m
1 stop
Asiana Airlines Logo
3:10 pm - 3:15 pm
HGH
-
SEA
15h 05m
1 stop
$956Asiana Airlines
Thu, Sep 3 - Tue, Sep 8

Asiana Airlines flights from Seattle to Hangzhou

Our best Asiana Airlines deals on Seattle to Hangzhou flight tickets
Asiana Airlines
Sep 6
SEA12:10 amSeattle/Tacoma Intl
22h 35m
1 stop
HGH1:45 pmHangzhou
Sep 28
HGH3:10 pmHangzhou
15h 05m
1 stop
SEA3:15 pmSeattle/Tacoma Intl
$865
Asiana Airlines
Sep 3
SEA12:10 amSeattle/Tacoma Intl
22h 35m
1 stop
HGH1:45 pmHangzhou
Sep 8
HGH3:10 pmHangzhou
15h 05m
1 stop
SEA3:15 pmSeattle/Tacoma Intl
$956
Asiana Airlines
Sep 6
SEA12:10 amSeattle/Tacoma Intl
22h 35m
1 stop
HGH1:45 pmHangzhou
Oct 1
HGH3:10 pmHangzhou
15h 05m
1 stop
SEA3:15 pmSeattle/Tacoma Intl
$966

Korean Air flights from Seattle to Hangzhou

Our best Korean Air deals on Seattle to Hangzhou flight tickets
Korean Air
Sep 7
SEA6:55 pmSeattle/Tacoma Intl
27h 30m
2 stops
HGH1:25 pmHangzhou
Sep 28
HGH2:30 pmHangzhou
35h 10m
1 stop
SEA10:40 amSeattle/Tacoma Intl
$911
Korean Air
Sep 9
SEA12:50 pmSeattle/Tacoma Intl
33h 35m
1 stop
HGH1:25 pmHangzhou
Sep 28
HGH2:30 pmHangzhou
20h 58m
2 stops
SEA8:28 pmSeattle/Tacoma Intl
$917
Korean Air
Sep 7
SEA6:55 pmSeattle/Tacoma Intl
27h 30m
2 stops
HGH1:25 pmHangzhou
Sep 28
HGH2:30 pmHangzhou
20h 58m
2 stops
SEA8:28 pmSeattle/Tacoma Intl
$922

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 April 19, 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
Quickest round-trip

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 9/6

12:10 am-1:45 pm

1 stop22h 35m

Hangzhou

Tue 9/29

3:10 pm-3:15 pm

1 stop15h 05m

$865

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 4/29

11:45 am-10:35 pm

1 stop19h 50m

Hangzhou

Sun 5/10

7:45 pm-10:05 am

1 stop29h 20m

$891

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 9/7

12:25 pm-10:35 pm

1 stop19h 10m

Hangzhou

Wed 9/30

3:55 pm-10:05 am

1 stop33h 10m

$896

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 9/7

6:55 pm-1:25 pm

2 stops27h 30m

Hangzhou

Mon 9/28

2:30 pm-10:40 am

1 stop35h 10m

$911

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 9/9

12:50 pm-1:25 pm

1 stop33h 35m

Hangzhou

Mon 9/28

2:30 pm-8:28 pm

2 stops20h 58m

$917

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 9/7

6:55 pm-1:25 pm

2 stops27h 30m

Hangzhou

Mon 9/28

2:30 pm-8:28 pm

2 stops20h 58m

$922

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 9/8

7:59 pm-1:25 pm

2 stops50h 26m

Hangzhou

Mon 9/28

2:30 pm-10:40 am

1 stop35h 10m

$924

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 9/8

2:30 pm-1:25 pm

2 stops55h 55m

Hangzhou

Mon 9/28

2:30 pm-8:28 pm

2 stops20h 58m

$930

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 9/5

11:00 am-8:10 pm

1 stop18h 10m

Hangzhou

Fri 10/2

9:25 pm-9:00 am

1 stop26h 35m

$942

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 9/3

12:10 am-1:45 pm

1 stop22h 35m

Hangzhou

Tue 9/8

3:10 pm-3:15 pm

1 stop15h 05m

$956

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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?

Hainan Airlines, Korean Air, and Cathay Pacific are the most popular carriers operating from Seattle/Tacoma Intl 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 Seattle according to our data. Delta is the first choice among our users, with 51% 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

18h 10m

Direct flights

None
The fastest flight from Seattle to Hangzhou takes 18h 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. 18h 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
1,280 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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