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Cheap flights from Seattle to Hangzhou from $357

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 11/29. 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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Find the cheapest flights from Seattle to Hangzhou

Cheap round-trip flights

Logo
12:36 pm - 12:50 pmSEA-HGH
32h 14m2 stops
Logo
9:00 pm - 11:55 amHGH-SEA
54h 55m2 stops
$842
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Tue, Dec 2 - Sun, Dec 7
Hainan Airlines Logo
10:00 am - 7:55 pmSEA-HGH
17h 55m1 stop
Hainan Airlines Logo
7:35 pm - 8:00 amHGH-SEA
52h 25m2 stops
$887Hainan Airlines
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Tue, Dec 2 - Sun, Dec 7
Logo
5:26 pm - 9:45 amSEA-HGH
25h 19m2 stops
Logo
6:00 pm - 11:39 amHGH-SEA
33h 39m2 stops
$904
Find Deal
Mon, Oct 20 - Fri, Nov 7
Korean Air Logo
12:50 pm - 1:25 pmSEA-HGH
33h 35m1 stop
Korean Air Logo
2:40 pm - 9:00 amHGH-SEA
34h 20m1 stop
$915Korean Air
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Mon, Oct 20 - Fri, Nov 7
Korean Air Logo
2:10 pm - 1:25 pmSEA-HGH
32h 15m2 stops
Korean Air Logo
2:40 pm - 9:00 amHGH-SEA
34h 20m1 stop
$920Korean Air
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Mon, Oct 20 - Fri, Nov 7
Hainan Airlines Logo
10:00 am - 7:55 pmSEA-HGH
17h 55m1 stop
Hainan Airlines Logo
4:45 pm - 8:00 amHGH-SEA
55h 15m2 stops
$931Hainan Airlines
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Tue, Dec 2 - Sun, Dec 7
Cathay Pacific Logo
8:15 pm - 10:10 amSEA-HGH
22h 55m2 stops
Cathay Pacific Logo
11:25 am - 9:02 pmHGH-SEA
25h 37m2 stops
$1,040Cathay Pacific
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Sat, Oct 18 - Sat, Nov 8
Cathay Pacific Logo
5:40 pm - 10:30 pmSEA-HGH
36h 50m2 stops
Cathay Pacific Logo
8:00 am - 6:51 pmHGH-SEA
26h 51m2 stops
$1,067Cathay Pacific
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Sun, Mar 1 - Thu, Mar 5
Asiana Airlines Logo
12:10 am - 1:45 pmSEA-HGH
21h 35m1 stop
Asiana Airlines Logo
3:10 pm - 1:55 pmHGH-SEA
14h 45m1 stop
$1,128Asiana Airlines
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Mon, Dec 1 - Sun, Dec 7
Asiana Airlines Logo
12:10 am - 1:45 pmSEA-HGH
21h 35m1 stop
Asiana Airlines Logo
3:10 pm - 3:05 pmHGH-SEA
39h 55m2 stops
$1,563Asiana Airlines
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Sat, Feb 28 - Thu, Mar 5

Hainan Airlines flights from Seattle to Hangzhou

Our best Hainan Airlines deals on Seattle to Hangzhou flight tickets
Hainan Airlines
Dec 2
SEA10:00 amSeattle/Tacoma Intl
17h 55m
1 stop
HGH7:55 pmHangzhou
Dec 7
HGH7:35 pmHangzhou
52h 25m
2 stops
SEA8:00 amSeattle/Tacoma Intl
$887
Find similar
Hainan Airlines
Dec 2
SEA10:00 amSeattle/Tacoma Intl
17h 55m
1 stop
HGH7:55 pmHangzhou
Dec 7
HGH4:45 pmHangzhou
55h 15m
2 stops
SEA8:00 amSeattle/Tacoma Intl
$931
Find similar
Hainan Airlines
Oct 18
SEA11:00 amSeattle/Tacoma Intl
22h 40m
1 stop
HGH12:40 amHangzhou
Nov 8
HGH8:30 amHangzhou
15h 30m
1 stop
SEA8:00 amSeattle/Tacoma Intl
$1,201
Find similar

Asiana Airlines flights from Seattle to Hangzhou

Our best Asiana Airlines deals on Seattle to Hangzhou flight tickets
Asiana Airlines
Dec 1
SEA12:10 amSeattle/Tacoma Intl
21h 35m
1 stop
HGH1:45 pmHangzhou
Dec 7
HGH3:10 pmHangzhou
14h 45m
1 stop
SEA1:55 pmSeattle/Tacoma Intl
$1,128
Find similar
Asiana Airlines
Feb 28
SEA12:10 amSeattle/Tacoma Intl
21h 35m
1 stop
HGH1:45 pmHangzhou
Mar 5
HGH3:10 pmHangzhou
39h 55m
2 stops
SEA3:05 pmSeattle/Tacoma Intl
$1,563
Find similar

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 September 15, 2025.
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

Tue 12/2

12:36 pm-12:50 pm

2 stops32h 14m

Hangzhou

Sun 12/7

9:00 pm-11:55 am

2 stops54h 55m

$842

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 12/2

10:00 am-7:55 pm

1 stop17h 55m

Hangzhou

Sun 12/7

7:35 pm-8:00 am

2 stops52h 25m

$887

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 10/20

5:26 pm-9:45 am

2 stops25h 19m

Hangzhou

Fri 11/7

6:00 pm-11:39 am

2 stops33h 39m

$904

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 10/20

12:50 pm-1:25 pm

1 stop33h 35m

Hangzhou

Fri 11/7

2:40 pm-9:00 am

1 stop34h 20m

$915

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 10/20

2:10 pm-1:25 pm

2 stops32h 15m

Hangzhou

Fri 11/7

2:40 pm-9:00 am

1 stop34h 20m

$920

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 12/2

10:00 am-7:55 pm

1 stop17h 55m

Hangzhou

Sun 12/7

4:45 pm-8:00 am

2 stops55h 15m

$931

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 10/18

8:15 pm-10:10 am

2 stops22h 55m

Hangzhou

Sat 11/8

11:25 am-9:02 pm

2 stops25h 37m

$1,040

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 3/1

5:40 pm-10:30 pm

2 stops36h 50m

Hangzhou

Thu 3/5

8:00 am-6:51 pm

2 stops26h 51m

$1,067

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 12/1

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Sun 12/7

3:10 pm-1:55 pm

1 stop14h 45m

$1,128

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 2/28

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Thu 3/5

3:10 pm-3:05 pm

2 stops39h 55m

$1,563

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 day to depart on your flight to Hangzhou?

Our data shows that Thursday is the least expensive day to fly to Hangzhou. Tickets to fly out on this day can be as low as $803. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $1,303. These prices are subject to change though, so be sure to set up a Price Alert for flights to Hangzhou.

What is the cheapest time of day to depart on your flight to Hangzhou?

Our data shows that the cheapest Seattle to Hangzhou flights are usually those with departure times in the morning. Our users have found flights to Hangzhou in the morning for as low as $846. In contrast, the most expensive time of day to depart to Hangzhou is in the evening when prices are around $1,270.

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

Direct flights

None
There are no direct flights from Seattle to Hangzhou. There are no popular flight routes from Seattle to Hangzhou.
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  • How far is Seattle/Tacoma Intl to Hangzhou by plane?

    Seattle/Tacoma Intl and Hangzhou are 5802.6 mi apart from one another. 17h 55m 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 $468Free CancellationRating
8.2
45 reviews
Search Hainan Airlines 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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