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 69% of people opting to fly with this airline when traveling to Hangzhou. Keep in mind that there are 8 different airlines that fly to Hangzhou on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Hangzhou?

Korean Air is the most popular carrier operating from Seattle/Tacoma Intl to Hangzhou

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?

As of December 2025, there is 1 operator available to choose from 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.

$519 Cheap Flights from Seattle to Hangzhou in 2025/26

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Find the cheapest flights from Seattle to Hangzhou

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:53 pm - 11:10 am

SEA

HGH

25h 17m2 stops

6:50 pm - 10:01 am

HGH

SEA

31h 11m2 stops

$851Multiple Airlines

Tue, Jan 20 - Tue, Jan 27

12:10 am - 1:45 pm

SEA

HGH

21h 35m1 stop

3:05 pm - 1:55 pm

HGH

SEA

14h 50m1 stop

$852Asiana Airlines

Mon, Feb 9 - Mon, Feb 23

12:10 am - 1:45 pm

SEA

HGH

21h 35m1 stop

3:05 pm - 1:55 pm

HGH

SEA

14h 50m1 stop

$854Asiana Airlines

Mon, Feb 9 - Sun, Feb 22

10:00 am - 7:55 pm

SEA

HGH

17h 55m1 stop

8:30 am - 8:00 am

HGH

SEA

15h 30m1 stop

$870Hainan Airlines

Tue, Feb 10 - Sat, Feb 21

12:10 am - 1:45 pm

SEA

HGH

21h 35m1 stop

3:05 pm - 1:55 pm

HGH

SEA

14h 50m1 stop

$900Asiana Airlines

Sun, Feb 8 - Mon, Feb 23

12:10 am - 1:45 pm

SEA

HGH

21h 35m1 stop

3:05 pm - 1:55 pm

HGH

SEA

14h 50m1 stop

$905Asiana Airlines

Sat, Feb 7 - Sat, Feb 21

11:50 am - 2:40 pm

SEA

HGH

35h 50m1 stop

11:25 am - 10:10 am

HGH

SEA

37h 45m1 stop

$906Cathay Pacific

Thu, Apr 16 - Mon, Apr 20

10:00 am - 7:55 pm

SEA

HGH

17h 55m1 stop

7:30 am - 8:00 am

HGH

SEA

16h 30m1 stop

$909Hainan Airlines

Tue, Jan 20 - Tue, Jan 27

12:25 pm - 10:55 am

SEA

HGH

30h 30m2 stops

2:40 pm - 9:00 am

HGH

SEA

34h 20m1 stop

$910Korean Air

Mon, Feb 9 - Mon, Feb 23

11:00 am - 10:55 am

SEA

HGH

31h 55m1 stop

12:05 pm - 9:51 pm

HGH

SEA

25h 46m2 stops

$916Korean Air

Mon, Feb 9 - Wed, Feb 25

EVA Air flights from Seattle to Hangzhou

Our best EVA Air deals on Seattle to Hangzhou flight tickets

EVA Air

Feb 11

SEA12:10 amSeattle/Tacoma Intl

26h 05m

1 stop

HGH6:15 pmHangzhou

Feb 22

HGH7:35 pmHangzhou

14h 35m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

$1,140

Find similar

EVA Air

Dec 15

SEA12:10 amSeattle/Tacoma Intl

26h 05m

1 stop

HGH6:15 pmHangzhou

Jan 9

HGH7:35 pmHangzhou

14h 35m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

$2,162

Find similar

EVA Air

Dec 12

SEA12:10 amSeattle/Tacoma Intl

26h 05m

1 stop

HGH6:15 pmHangzhou

Jan 9

HGH7:35 pmHangzhou

14h 35m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

$2,180

Find similar

Korean Air flights from Seattle to Hangzhou

Our best Korean Air deals on Seattle to Hangzhou flight tickets

Korean Air

Feb 9

SEA12:25 pmSeattle/Tacoma Intl

30h 30m

2 stops

HGH10:55 amHangzhou

Feb 23

HGH2:40 pmHangzhou

34h 20m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$910

Find similar

Korean Air

Feb 9

SEA11:00 amSeattle/Tacoma Intl

31h 55m

1 stop

HGH10:55 amHangzhou

Feb 25

HGH12:05 pmHangzhou

25h 46m

2 stops

SEA9:51 pmSeattle/Tacoma Intl

$916

Find similar

Korean Air

Feb 9

SEA7:15 amSeattle/Tacoma Intl

35h 40m

2 stops

HGH10:55 amHangzhou

Feb 25

HGH12:05 pmHangzhou

25h 46m

2 stops

SEA9:51 pmSeattle/Tacoma Intl

$921

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 1/20

5:53 pm-11:10 am

2 stops25h 17m

Hangzhou

Tue 1/27

6:50 pm-10:01 am

2 stops31h 11m

$851

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 2/9

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Mon 2/23

3:05 pm-1:55 pm

1 stop14h 50m

$852

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 2/9

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Sun 2/22

3:05 pm-1:55 pm

1 stop14h 50m

$854

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 2/10

10:00 am-7:55 pm

1 stop17h 55m

Hangzhou

Sat 2/21

8:30 am-8:00 am

1 stop15h 30m

$870

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 2/8

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Mon 2/23

3:05 pm-1:55 pm

1 stop14h 50m

$900

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sat 2/7

12:10 am-1:45 pm

1 stop21h 35m

Hangzhou

Sat 2/21

3:05 pm-1:55 pm

1 stop14h 50m

$905

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Thu 4/16

11:50 am-2:40 pm

1 stop35h 50m

Hangzhou

Mon 4/20

11:25 am-10:10 am

1 stop37h 45m

$906

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 1/20

10:00 am-7:55 pm

1 stop17h 55m

Hangzhou

Tue 1/27

7:30 am-8:00 am

1 stop16h 30m

$909

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-9:00 am

1 stop34h 20m

$910

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 2/9

11:00 am-10:55 am

1 stop31h 55m

Hangzhou

Wed 2/25

12:05 pm-9:51 pm

2 stops25h 46m

$916

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

Fastest flight time	19h 15m
Direct flights	None

The fastest flight from Seattle to Hangzhou takes 19h 15m

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. 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?
As of December 2025, there is 1 operator available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from Seattle to Hangzhou is Hainan Airlines, representing 100% of all bookings.

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 Airlines	PriceFrom $843	Free Cancellation	Rating 8.3 58 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.