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Cheap flights from Seattle to Hangzhou from $399

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 3/8. 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.
Hainan Airlines Logo
11:00 am - 8:05 pm
SEA
-
HGH
18h 05m
1 stop
Hainan Airlines Logo
7:25 am - 9:00 am
HGH
-
SEA
16h 35m
1 stop
$814Hainan Airlines
Sat, Mar 28 - Tue, Apr 14
Hainan Airlines Logo
10:00 am - 7:55 pm
SEA
-
HGH
17h 55m
1 stop
Hainan Airlines Logo
8:30 am - 8:00 am
HGH
-
SEA
15h 30m
1 stop
$891Hainan Airlines
Tue, Feb 17 - Tue, Mar 3
Multiple Airlines Logo
1:40 pm - 1:45 pm
SEA
-
HGH
32h 05m
1 stop
Multiple Airlines Logo
3:05 pm - 1:45 pm
HGH
-
SEA
14h 40m
1 stop
$902Multiple Airlines
Sun, Feb 15 - Mon, Mar 2
Multiple Airlines Logo
11:00 am - 8:05 pm
SEA
-
HGH
18h 05m
1 stop
Multiple Airlines Logo
3:10 pm - 2:55 pm
HGH
-
SEA
14h 45m
1 stop
$909Multiple Airlines
Sat, Mar 28 - Wed, Apr 15
Korean Air Logo
7:15 am - 10:55 am
SEA
-
HGH
35h 40m
2 stops
Korean Air Logo
2:40 pm - 9:00 am
HGH
-
SEA
34h 20m
1 stop
$911Korean Air
Mon, Feb 9 - Mon, Feb 23
Multiple Airlines Logo
1:40 pm - 1:45 pm
SEA
-
HGH
32h 05m
1 stop
Multiple Airlines Logo
3:05 pm - 1:45 pm
HGH
-
SEA
14h 40m
1 stop
$912Multiple Airlines
Sun, Feb 15 - Mon, Mar 2
Hainan Airlines Logo
10:00 am - 7:55 pm
SEA
-
HGH
17h 55m
1 stop
Hainan Airlines Logo
8:50 pm - 8:05 am
HGH
-
SEA
27h 15m
2 stops
$916Hainan Airlines
Tue, Feb 17 - Wed, Mar 4
Korean Air Logo
12:25 pm - 10:55 am
SEA
-
HGH
30h 30m
2 stops
Korean Air Logo
2:40 pm - 9:51 pm
HGH
-
SEA
23h 11m
2 stops
$922Korean Air
Mon, Feb 9 - Mon, Feb 23
Korean Air Logo
2:02 pm - 1:30 pm
SEA
-
HGH
55h 28m
2 stops
Korean Air Logo
2:40 pm - 9:00 am
HGH
-
SEA
34h 20m
1 stop
$924Korean Air
Tue, Feb 10 - Mon, Feb 23
Korean Air Logo
2:02 pm - 1:30 pm
SEA
-
HGH
55h 28m
2 stops
Korean Air Logo
12:05 pm - 8:30 pm
HGH
-
SEA
24h 25m
2 stops
$929Korean Air
Tue, Feb 10 - Wed, Feb 25

Korean Air flights from Seattle to Hangzhou

Our best Korean Air deals on Seattle to Hangzhou flight tickets
Korean Air
Feb 9
SEA7:15 amSeattle/Tacoma Intl
35h 40m
2 stops
HGH10:55 amHangzhou
Feb 23
HGH2:40 pmHangzhou
34h 20m
1 stop
SEA9:00 amSeattle/Tacoma Intl
$911
Korean Air
Feb 9
SEA12:25 pmSeattle/Tacoma Intl
30h 30m
2 stops
HGH10:55 amHangzhou
Feb 23
HGH2:40 pmHangzhou
23h 11m
2 stops
SEA9:51 pmSeattle/Tacoma Intl
$922
Korean Air
Feb 10
SEA2:02 pmSeattle/Tacoma Intl
55h 28m
2 stops
HGH1:30 pmHangzhou
Feb 23
HGH2:40 pmHangzhou
34h 20m
1 stop
SEA9:00 amSeattle/Tacoma Intl
$924

Cathay Pacific flights from Seattle to Hangzhou

Our best Cathay Pacific deals on Seattle to Hangzhou flight tickets
Cathay Pacific
Feb 10
SEA7:55 pmSeattle/Tacoma Intl
22h 15m
2 stops
HGH10:10 amHangzhou
Feb 24
HGH3:45 pmHangzhou
21h 02m
2 stops
SEA8:47 pmSeattle/Tacoma Intl
$975
Cathay Pacific
Feb 15
SEA7:55 pmSeattle/Tacoma Intl
30h 20m
2 stops
HGH6:15 pmHangzhou
Mar 2
HGH7:30 pmHangzhou
31h 14m
2 stops
SEA10:44 amSeattle/Tacoma Intl
$976
Cathay Pacific
Mar 28
SEA7:24 pmSeattle/Tacoma Intl
23h 46m
2 stops
HGH10:10 amHangzhou
Apr 14
HGH3:55 pmHangzhou
33h 15m
1 stop
SEA10:10 amSeattle/Tacoma Intl
$982

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 January 15, 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

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 3/28

11:00 am-8:05 pm

1 stop18h 05m

Hangzhou

Tue 4/14

7:25 am-9:00 am

1 stop16h 35m

$814

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 2/17

10:00 am-7:55 pm

1 stop17h 55m

Hangzhou

Tue 3/3

8:30 am-8:00 am

1 stop15h 30m

$891

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 2/15

1:40 pm-1:45 pm

1 stop32h 05m

Hangzhou

Mon 3/2

3:05 pm-1:45 pm

1 stop14h 40m

$902

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 3/28

11:00 am-8:05 pm

1 stop18h 05m

Hangzhou

Wed 4/15

3:10 pm-2:55 pm

1 stop14h 45m

$909

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 2/9

7:15 am-10:55 am

2 stops35h 40m

Hangzhou

Mon 2/23

2:40 pm-9:00 am

1 stop34h 20m

$911

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 2/15

1:40 pm-1:45 pm

1 stop32h 05m

Hangzhou

Mon 3/2

3:05 pm-1:45 pm

1 stop14h 40m

$912

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 2/17

10:00 am-7:55 pm

1 stop17h 55m

Hangzhou

Wed 3/4

8:50 pm-8:05 am

2 stops27h 15m

$916

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 2/9

12:25 pm-10:55 am

2 stops30h 30m

Hangzhou

Mon 2/23

2:40 pm-9:51 pm

2 stops23h 11m

$922

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 2/10

2:02 pm-1:30 pm

2 stops55h 28m

Hangzhou

Mon 2/23

2:40 pm-9:00 am

1 stop34h 20m

$924

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 2/10

2:02 pm-1:30 pm

2 stops55h 28m

Hangzhou

Wed 2/25

12:05 pm-8:30 pm

2 stops24h 25m

$929

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?

China Eastern is the most popular carrier 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 68% 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.

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 05m

Direct flights

None
The fastest flight from Seattle to Hangzhou takes 18h 05m
There are no direct flights from Seattle to Hangzhou. There are no popular flight routes from Seattle to Hangzhou.
Search flight deals

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

    Seattle/Tacoma Intl and Hangzhou are 5802.6 mi apart from one another. 18h 05m 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
Hainan AirlinesPriceFrom $843Free CancellationRating
8.2
62 reviews
Search Hainan Airlines flights
Cathay PacificPriceFrom $872Free CancellationRating
7.6
1,130 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.

An easier way to manage your Hangzhou trip

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