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 January 2026, there are 2 operators 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.

$445 Cheap Flights from Seattle to Hangzhou in 2026

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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.

12:10 am - 1:45 pm

SEA

HGH

22h 35m

1 stop

3:10 pm - 2:55 pm

HGH

SEA

14h 45m

1 stop

$855Asiana Airlines

Mon, Mar 9 - Thu, Apr 16

12:55 am - 1:45 pm

SEA

HGH

21h 50m

1 stop

3:10 pm - 2:55 pm

HGH

SEA

14h 45m

1 stop

$906Asiana Airlines

Sun, Apr 5 - Thu, Apr 9

7:15 am - 1:30 pm

SEA

HGH

38h 15m

2 stops

2:40 pm - 9:00 am

HGH

SEA

34h 20m

1 stop

$911Korean Air

Wed, Feb 11 - Mon, Mar 2

7:15 am - 1:30 pm

SEA

HGH

38h 15m

2 stops

2:40 pm - 9:00 am

HGH

SEA

34h 20m

1 stop

$912Korean Air

Wed, Feb 11 - Mon, Mar 2

7:15 am - 1:30 pm

SEA

HGH

38h 15m

2 stops

12:05 pm - 9:51 pm

HGH

SEA

25h 46m

2 stops

$922Korean Air

Wed, Feb 11 - Wed, Mar 4

7:15 am - 1:30 pm

SEA

HGH

38h 15m

2 stops

2:40 pm - 4:58 pm

HGH

SEA

42h 18m

2 stops

$923Korean Air

Wed, Feb 11 - Mon, Mar 2

5:40 pm - 1:30 pm

SEA

HGH

51h 50m

2 stops

2:40 pm - 9:00 am

HGH

SEA

34h 20m

1 stop

$924Korean Air

Tue, Feb 10 - Mon, Feb 23

2:02 pm - 1:30 pm

SEA

HGH

55h 28m

2 stops

2:40 pm - 2:44 pm

HGH

SEA

40h 04m

2 stops

$930Korean Air

Tue, Feb 10 - Mon, Feb 23

6:00 am - 10:30 pm

SEA

HGH

25h 30m

2 stops

8:00 am - 10:05 am

HGH

SEA

17h 05m

1 stop

$932Cathay Pacific

Tue, Mar 10 - Thu, Apr 16

10:00 am - 7:55 pm

SEA

HGH

17h 55m

1 stop

9:10 pm - 8:00 am

HGH

SEA

26h 50m

1 stop

$942Hainan Airlines

Tue, Feb 17 - Mon, Mar 2

Asiana Airlines flights from Seattle to Hangzhou

Our best Asiana Airlines deals on Seattle to Hangzhou flight tickets

Asiana Airlines

Mar 9

SEA12:10 amSeattle/Tacoma Intl

22h 35m

1 stop

HGH1:45 pmHangzhou

Apr 16

HGH3:10 pmHangzhou

14h 45m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$855

Asiana Airlines

Apr 5

SEA12:55 amSeattle/Tacoma Intl

21h 50m

1 stop

HGH1:45 pmHangzhou

Apr 9

HGH3:10 pmHangzhou

14h 45m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$906

Asiana Airlines

Feb 15

SEA12:10 amSeattle/Tacoma Intl

21h 35m

1 stop

HGH1:45 pmHangzhou

Mar 4

HGH3:05 pmHangzhou

14h 50m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

$996

Korean Air flights from Seattle to Hangzhou

Our best Korean Air deals on Seattle to Hangzhou flight tickets

Korean Air

Feb 4

SEA11:00 amSeattle/Tacoma Intl

34h 30m

1 stop

HGH1:30 pmHangzhou

Feb 23

HGH2:40 pmHangzhou

34h 20m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$906

Korean Air

Feb 11

SEA7:15 amSeattle/Tacoma Intl

38h 15m

2 stops

HGH1:30 pmHangzhou

Mar 2

HGH2:40 pmHangzhou

34h 20m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$911

Korean Air

Feb 11

SEA7:15 amSeattle/Tacoma Intl

38h 15m

2 stops

HGH1:30 pmHangzhou

Mar 2

HGH2:40 pmHangzhou

34h 20m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$912

Fly from

Fly to

Route

Depart

Return

Price

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Mon 3/9

12:10 am-1:45 pm

1 stop22h 35m

Hangzhou

Thu 4/16

3:10 pm-2:55 pm

1 stop14h 45m

$855

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Sun 4/5

12:55 am-1:45 pm

1 stop21h 50m

Hangzhou

Thu 4/9

3:10 pm-2:55 pm

1 stop14h 45m

$906

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 2/11

7:15 am-1:30 pm

2 stops38h 15m

Hangzhou

Mon 3/2

2:40 pm-9:00 am

1 stop34h 20m

$911

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 2/11

7:15 am-1:30 pm

2 stops38h 15m

Hangzhou

Mon 3/2

2:40 pm-9:00 am

1 stop34h 20m

$912

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 2/11

7:15 am-1:30 pm

2 stops38h 15m

Hangzhou

Wed 3/4

12:05 pm-9:51 pm

2 stops25h 46m

$922

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Wed 2/11

7:15 am-1:30 pm

2 stops38h 15m

Hangzhou

Mon 3/2

2:40 pm-4:58 pm

2 stops42h 18m

$923

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 2/10

5:40 pm-1:30 pm

2 stops51h 50m

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

Mon 2/23

2:40 pm-2:44 pm

2 stops40h 04m

$930

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 3/10

6:00 am-10:30 pm

2 stops25h 30m

Hangzhou

Thu 4/16

8:00 am-10:05 am

1 stop17h 05m

$932

SeattleHangzhou

SEA - HGH

SEAHGH

Seattle/Tacoma Intl

Tue 2/17

10:00 am-7:55 pm

1 stop17h 55m

Hangzhou

Mon 3/2

9:10 pm-8:00 am

1 stop26h 50m

$942

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

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

China Eastern, Hainan Airlines, and Air China 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 64% 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?
As of January 2026, there are 2 operators 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 58% of all bookings. The subsequent popular airline is Cathay Pacific at 42%.

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 8.2 62 reviews		Search Hainan Airlines flights
Cathay Pacific	PriceFrom $872	Free Cancellation	Rating 7.6 1,153 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.