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Cheap flights from Seattle to Hangzhou from $492

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 8/15. 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 Seattle to Hangzhou

Cheap round-trip flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
11:45 am - 2:40 pm
SEA
-
HGH
35h 55m
1 stop
Cathay Pacific Logo
3:55 pm - 10:05 am
HGH
-
SEA
33h 10m
1 stop
$700Cathay Pacific
Thu, Sep 17 - Mon, Sep 21
Cathay Pacific Logo
11:45 am - 2:40 pm
SEA
-
HGH
35h 55m
1 stop
Cathay Pacific Logo
11:25 am - 10:05 am
HGH
-
SEA
37h 40m
1 stop
$733Cathay Pacific
Thu, Sep 17 - Mon, Sep 21
Multiple Airlines Logo
11:45 am - 6:30 pm
SEA
-
HGH
39h 45m
1 stop
Multiple Airlines Logo
7:45 pm - 8:11 am
HGH
-
SEA
27h 26m
2 stops
$814Multiple Airlines
Thu, Sep 17 - Mon, Sep 21
Cathay Pacific Logo
11:45 am - 2:40 pm
SEA
-
HGH
35h 55m
1 stop
Cathay Pacific Logo
7:45 pm - 8:38 pm
HGH
-
SEA
39h 53m
2 stops
$852Cathay Pacific
Thu, Sep 17 - Mon, Sep 21
Cathay Pacific Logo
7:10 pm - 2:40 pm
SEA
-
HGH
28h 30m
2 stops
Cathay Pacific Logo
7:45 pm - 10:05 am
HGH
-
SEA
29h 20m
1 stop
$857Cathay Pacific
Thu, Sep 17 - Mon, Sep 21
Cathay Pacific Logo
11:45 am - 2:40 pm
SEA
-
HGH
35h 55m
1 stop
Cathay Pacific Logo
7:30 pm - 10:10 am
HGH
-
SEA
29h 40m
1 stop
$919Cathay Pacific
Thu, Oct 22 - Mon, Oct 26
Multiple Airlines Logo
1:13 pm - 10:10 am
SEA
-
HGH
29h 57m
2 stops
Multiple Airlines Logo
7:45 pm - 8:52 am
HGH
-
SEA
28h 07m
2 stops
$933Multiple Airlines
Thu, Sep 17 - Mon, Sep 21
Cathay Pacific Logo
12:25 pm - 10:35 pm
SEA
-
HGH
19h 10m
1 stop
Cathay Pacific Logo
8:00 am - 10:20 am
HGH
-
SEA
17h 20m
1 stop
$966Cathay Pacific
Thu, Jul 16 - Thu, Jul 23
Cathay Pacific Logo
8:41 am - 6:30 pm
SEA
-
HGH
42h 49m
2 stops
Cathay Pacific Logo
7:45 pm - 8:38 pm
HGH
-
SEA
39h 53m
2 stops
$976Cathay Pacific
Thu, Sep 17 - Mon, Sep 21
Multiple Airlines Logo
12:25 pm - 10:10 am
SEA
-
HGH
30h 45m
1 stop
Multiple Airlines Logo
11:25 am - 4:27 pm
HGH
-
SEA
20h 02m
2 stops
$977Multiple Airlines
Thu, Jul 16 - Thu, Jul 23

Cathay Pacific flights from Seattle to Hangzhou

Our best Cathay Pacific deals on Seattle to Hangzhou flight tickets
Cathay Pacific
Sep 17
SEA11:45 amSeattle/Tacoma Intl
35h 55m
1 stop
HGH2:40 pmHangzhou
Sep 21
HGH3:55 pmHangzhou
33h 10m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$700
Cathay Pacific
Sep 17
SEA11:45 amSeattle/Tacoma Intl
35h 55m
1 stop
HGH2:40 pmHangzhou
Sep 21
HGH11:25 amHangzhou
37h 40m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$733
Cathay Pacific
Sep 17
SEA11:45 amSeattle/Tacoma Intl
35h 55m
1 stop
HGH2:40 pmHangzhou
Sep 21
HGH7:45 pmHangzhou
39h 53m
2 stops
SEA8:38 pmSeattle/Tacoma Intl
$852

Air Canada flights from Seattle to Hangzhou

Our best Air Canada deals on Seattle to Hangzhou flight tickets
Air Canada
Jun 11
SEA5:45 amSeattle/Tacoma Intl
25h 20m
2 stops
HGH10:05 pmHangzhou
Jun 25
HGH2:00 pmHangzhou
19h 32m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$1,698
Air Canada
Jun 11
SEA5:45 amSeattle/Tacoma Intl
25h 20m
2 stops
HGH10:05 pmHangzhou
Jun 24
HGH2:00 pmHangzhou
19h 32m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$1,758
Air Canada
Jul 11
SEA10:45 amSeattle/Tacoma Intl
20h 10m
2 stops
HGH9:55 pmHangzhou
Aug 3
HGH2:00 pmHangzhou
23h 48m
2 stops
SEA10:48 pmSeattle/Tacoma Intl
$1,833

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 June 6, 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

Thu 9/17

11:45 am-2:40 pm

1 stop35h 55m

Hangzhou

Mon 9/21

3:55 pm-10:05 am

1 stop33h 10m

$700

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 9/17

11:45 am-2:40 pm

1 stop35h 55m

Hangzhou

Mon 9/21

11:25 am-10:05 am

1 stop37h 40m

$733

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 9/17

11:45 am-6:30 pm

1 stop39h 45m

Hangzhou

Mon 9/21

7:45 pm-8:11 am

2 stops27h 26m

$814

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 9/17

11:45 am-2:40 pm

1 stop35h 55m

Hangzhou

Mon 9/21

7:45 pm-8:38 pm

2 stops39h 53m

$852

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 9/17

7:10 pm-2:40 pm

2 stops28h 30m

Hangzhou

Mon 9/21

7:45 pm-10:05 am

1 stop29h 20m

$857

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 10/22

11:45 am-2:40 pm

1 stop35h 55m

Hangzhou

Mon 10/26

7:30 pm-10:10 am

1 stop29h 40m

$919

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 9/17

1:13 pm-10:10 am

2 stops29h 57m

Hangzhou

Mon 9/21

7:45 pm-8:52 am

2 stops28h 07m

$933
Quickest round-trip

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 7/16

12:25 pm-10:35 pm

1 stop19h 10m

Hangzhou

Thu 7/23

8:00 am-10:20 am

1 stop17h 20m

$966

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 9/17

8:41 am-6:30 pm

2 stops42h 49m

Hangzhou

Mon 9/21

7:45 pm-8:38 pm

2 stops39h 53m

$976

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 7/16

12:25 pm-10:10 am

1 stop30h 45m

Hangzhou

Thu 7/23

11:25 am-4:27 pm

2 stops20h 02m

$977

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 and Asiana Airlines 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 47% 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

17h 30m

Direct flights

None
The fastest flight from Seattle to Hangzhou takes 17h 30m
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. 17h 30m 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
1,359 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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