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Cheap flights from Seattle to Hangzhou from $415

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 5/4. 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.
Cathay Pacific Logo
11:45 am - 10:10 am
SEA
-
HGH
31h 25m
1 stop
Cathay Pacific Logo
8:00 am - 10:05 am
HGH
-
SEA
17h 05m
1 stop
$677Cathay Pacific
Wed, Apr 15 - Wed, Apr 22
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
11:45 am - 10:35 pm
SEA
-
HGH
19h 50m
1 stop
Cathay Pacific Logo
3:55 pm - 7:04 am
HGH
-
SEA
30h 09m
2 stops
$771Cathay Pacific
Wed, Apr 15 - Wed, Apr 22
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
$773Cathay Pacific
Sat, Apr 18 - Sat, May 2
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
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
$800Cathay Pacific
Mon, Apr 6 - Thu, Apr 9
Cathay Pacific Logo
7:51 pm - 10:10 am
SEA
-
HGH
23h 19m
2 stops
Cathay Pacific Logo
7:45 pm - 7:04 am
HGH
-
SEA
26h 19m
2 stops
$858Cathay Pacific
Wed, Apr 15 - Wed, Apr 22
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
$867Cathay Pacific
Sat, Apr 18 - Sat, May 2
Cathay Pacific Logo
8:41 am - 10:35 pm
SEA
-
HGH
22h 54m
2 stops
Cathay Pacific Logo
8:00 am - 5:13 pm
HGH
-
SEA
24h 13m
2 stops
$904Cathay Pacific
Mon, Apr 6 - Thu, Apr 9
Cathay Pacific Logo
7:51 pm - 10:10 am
SEA
-
HGH
23h 19m
2 stops
Cathay Pacific Logo
8:00 am - 10:52 pm
HGH
-
SEA
29h 52m
2 stops
$969Cathay Pacific
Sat, Apr 18 - Sat, May 2

Cathay Pacific flights from Seattle to Hangzhou

Our best Cathay Pacific deals on Seattle to Hangzhou flight tickets
Cathay Pacific
Apr 15
SEA11:45 amSeattle/Tacoma Intl
31h 25m
1 stop
HGH10:10 amHangzhou
Apr 22
HGH8:00 amHangzhou
17h 05m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$677
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 15
SEA11:45 amSeattle/Tacoma Intl
19h 50m
1 stop
HGH10:35 pmHangzhou
Apr 22
HGH3:55 pmHangzhou
30h 09m
2 stops
SEA7:04 amSeattle/Tacoma Intl
$771

United Airlines flights from Seattle to Hangzhou

Our best United Airlines deals on Seattle to Hangzhou flight tickets
United Airlines
Apr 6
SEA7:12 amSeattle/Tacoma Intl
42h 33m
2 stops
HGH4:45 pmHangzhou
Apr 9
HGH7:00 amHangzhou
29h 06m
3 stops
SEA9:06 pmSeattle/Tacoma Intl
$3,470
United Airlines
Apr 6
SEA7:12 amSeattle/Tacoma Intl
36h 33m
2 stops
HGH10:45 amHangzhou
Apr 9
HGH7:00 amHangzhou
29h 06m
3 stops
SEA9:06 pmSeattle/Tacoma Intl
$5,294

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 March 2, 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

Wed 4/15

11:45 am-10:10 am

1 stop31h 25m

Hangzhou

Wed 4/22

8:00 am-10:05 am

1 stop17h 05m

$677

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

Wed 4/15

11:45 am-10:35 pm

1 stop19h 50m

Hangzhou

Wed 4/22

3:55 pm-7:04 am

2 stops30h 09m

$771

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 4/18

11:45 am-10:35 pm

1 stop19h 50m

Hangzhou

Sat 5/2

8:00 am-10:05 am

1 stop17h 05m

$773

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

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

$800

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 4/15

7:51 pm-10:10 am

2 stops23h 19m

Hangzhou

Wed 4/22

7:45 pm-7:04 am

2 stops26h 19m

$858

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 4/18

8:41 am-10:35 pm

2 stops22h 54m

Hangzhou

Sat 5/2

8:00 am-10:05 am

1 stop17h 05m

$867

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-5:13 pm

2 stops24h 13m

$904

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 4/18

7:51 pm-10:10 am

2 stops23h 19m

Hangzhou

Sat 5/2

8:00 am-10:52 pm

2 stops29h 52m

$969

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?

Cathay Pacific 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 61% 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

19h 50m

Direct flights

None
The fastest flight from Seattle to Hangzhou takes 19h 50m
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. 19h 50m 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
1,180 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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