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Cheap flights from Seattle to Shanghai from $442

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 Shanghai departing on 10/26. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
11:50 am - 12:05 pmSEA-SHA
33h 15m1 stop
Cathay Pacific Logo
4:50 pm - 10:10 amSHA-SEA
32h 20m1 stop
$841Cathay Pacific
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Thu, Apr 2 - Fri, Apr 17
Multiple Airlines Logo
5:07 pm - 9:55 amSEA-SHA
25h 48m2 stops
Multiple Airlines Logo
9:30 pm - 11:39 amSHA-SEA
54h 09m2 stops
$843Multiple Airlines
Find Deal
Mon, Oct 27 - Sun, Nov 9
Multiple Airlines Logo
2:10 pm - 5:10 pmSEA-SHA
36h 00m2 stops
Multiple Airlines Logo
8:35 am - 8:00 amSHA-SEA
15h 25m1 stop
$849Multiple Airlines
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Sun, Oct 26 - Sat, Nov 8
Hainan Airlines Logo
10:05 am - 10:55 pmSEA-SHA
44h 50m2 stops
Hainan Airlines Logo
8:55 pm - 8:00 amSHA-SEA
27h 05m1 stop
$856Hainan Airlines
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Thu, Nov 13 - Mon, Nov 24
Hainan Airlines Logo
10:00 am - 7:40 pmSEA-SHA
17h 40m1 stop
Hainan Airlines Logo
8:35 am - 8:00 amSHA-SEA
15h 25m1 stop
$879Hainan Airlines
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Sat, Nov 15 - Tue, Nov 25
Asiana Airlines Logo
12:10 am - 9:45 amSEA-SHA
17h 35m1 stop
Asiana Airlines Logo
10:55 am - 1:55 pmSHA-SEA
19h 00m1 stop
$882Asiana Airlines
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Mon, Nov 3 - Tue, Nov 18
Korean Air Logo
5:30 pm - 5:10 pmSEA-SHA
31h 40m2 stops
Korean Air Logo
6:25 pm - 9:00 amSHA-SEA
30h 35m1 stop
$898Korean Air
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Sun, Nov 9 - Sun, Nov 16
Asiana Airlines Logo
12:10 am - 5:00 pmSEA-SHA
25h 50m1 stop
Asiana Airlines Logo
6:10 pm - 2:55 pmSHA-SEA
35h 45m1 stop
$919Asiana Airlines
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Thu, Apr 2 - Sat, Apr 11
Air China Logo
12:41 pm - 10:55 amSEA-SHA
30h 14m2 stops
Air China Logo
8:30 pm - 4:15 pmSHA-SEA
35h 45m2 stops
$947Air China
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Mon, Nov 10 - Tue, Nov 25
Air China Logo
5:00 pm - 10:00 amSEA-SHA
26h 00m2 stops
Air China Logo
8:55 am - 10:18 pmSHA-SEA
28h 23m2 stops
$953Air China
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Thu, Apr 9 - Sun, Apr 19

Korean Air flights from Seattle to Shanghai Hongqiao Intl Airport

Our best Korean Air deals on Seattle to Shanghai Hongqiao Intl Airport flight tickets
Korean Air
Oct 21
SEA12:50 pmSeattle/Tacoma Intl
37h 15m
1 stop
SHA5:05 pmShanghai Hongqiao Intl
Oct 28
SHA6:25 pmShanghai Hongqiao Intl
30h 35m
1 stop
SEA10:00 amSeattle/Tacoma Intl
$824
Find similar
Korean Air
Nov 9
SEA5:30 pmSeattle/Tacoma Intl
31h 40m
2 stops
SHA5:10 pmShanghai Hongqiao Intl
Nov 16
SHA6:25 pmShanghai Hongqiao Intl
30h 35m
1 stop
SEA9:00 amSeattle/Tacoma Intl
$898
Find similar
Korean Air
Oct 27
SEA12:00 pmSeattle/Tacoma Intl
38h 10m
1 stop
SHA5:10 pmShanghai Hongqiao Intl
Nov 9
SHA6:25 pmShanghai Hongqiao Intl
30h 35m
1 stop
SEA9:00 amSeattle/Tacoma Intl
$993
Find similar

Cathay Pacific flights from Seattle to Shanghai Hongqiao Intl Airport

Our best Cathay Pacific deals on Seattle to Shanghai Hongqiao Intl Airport flight tickets
Cathay Pacific
Apr 2
SEA11:50 amSeattle/Tacoma Intl
33h 15m
1 stop
SHA12:05 pmShanghai Hongqiao Intl
Apr 17
SHA4:50 pmShanghai Hongqiao Intl
32h 20m
1 stop
SEA10:10 amSeattle/Tacoma Intl
$841
Find similar
Cathay Pacific
Apr 2
SEA11:50 amSeattle/Tacoma Intl
33h 15m
1 stop
SHA12:05 pmShanghai Hongqiao Intl
Apr 30
SHA1:20 pmShanghai Hongqiao Intl
44h 18m
2 stops
SEA6:38 pmSeattle/Tacoma Intl
$858
Find similar
Cathay Pacific
Feb 15
SEA7:55 pmSeattle/Tacoma Intl
24h 25m
2 stops
SHA12:20 pmShanghai Hongqiao Intl
Mar 10
SHA1:35 pmShanghai Hongqiao Intl
25h 36m
2 stops
SEA12:11 amSeattle/Tacoma Intl
$873
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momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Shanghai Hongqiao Intl Airport 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 October 14, 2025.
Use the filters below to find and compare flights from Seattle to Shanghai Hongqiao Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Thu 4/2

11:50 am-12:05 pm

1 stop33h 15m

Shanghai Hongqiao Intl

Fri 4/17

4:50 pm-10:10 am

1 stop32h 20m

$841

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mon 10/27

5:07 pm-9:55 am

2 stops25h 48m

Shanghai Hongqiao Intl

Sun 11/9

9:30 pm-11:39 am

2 stops54h 09m

$843

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Sun 10/26

2:10 pm-5:10 pm

2 stops36h 00m

Shanghai Hongqiao Intl

Sat 11/8

8:35 am-8:00 am

1 stop15h 25m

$849

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Thu 11/13

10:05 am-10:55 pm

2 stops44h 50m

Shanghai Hongqiao Intl

Mon 11/24

8:55 pm-8:00 am

1 stop27h 05m

$856

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Sat 11/15

10:00 am-7:40 pm

1 stop17h 40m

Shanghai Hongqiao Intl

Tue 11/25

8:35 am-8:00 am

1 stop15h 25m

$879

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mon 11/3

12:10 am-9:45 am

1 stop17h 35m

Shanghai Hongqiao Intl

Tue 11/18

10:55 am-1:55 pm

1 stop19h 00m

$882

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Sun 11/9

5:30 pm-5:10 pm

2 stops31h 40m

Shanghai Hongqiao Intl

Sun 11/16

6:25 pm-9:00 am

1 stop30h 35m

$898

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Thu 4/2

12:10 am-5:00 pm

1 stop25h 50m

Shanghai Hongqiao Intl

Sat 4/11

6:10 pm-2:55 pm

1 stop35h 45m

$919

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mon 11/10

12:41 pm-10:55 am

2 stops30h 14m

Shanghai Hongqiao Intl

Tue 11/25

8:30 pm-4:15 pm

2 stops35h 45m

$947

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Thu 4/9

5:00 pm-10:00 am

2 stops26h 00m

Shanghai Hongqiao Intl

Sun 4/19

8:55 am-10:18 pm

2 stops28h 23m

$953

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Seattle to Shanghai Hongqiao Intl Airport

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 month to fly to Shanghai Hongqiao Intl Airport?

The cheapest month to fly to Shanghai Hongqiao Intl Airport from Seattle is in October. Flight prices, which tend to average around $961, are often lower during this time because this is during the off-season. If you don’t want to visit Shanghai Hongqiao Intl Airport in October, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $997.

What is the cheapest day to depart on your flight to Shanghai Hongqiao Intl Airport?

The cheapest day to depart from Seattle to Shanghai Hongqiao Intl Airport is on a Tuesday. Travelers who choose to depart for Shanghai Hongqiao Intl Airport on a Tuesday will often find tickets for as low as $1,291. On the other hand, Thursday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,524.

What is the cheapest time of day to depart on your flight to Shanghai Hongqiao Intl Airport?

Our most recent data shows that the best time of day to fly to Shanghai Hongqiao Intl Airport is in the evening. Flights from Seattle to Shanghai Hongqiao Intl Airport during this time can be as low as $1,269. Try not to purchase tickets in the morning because they tend to be around $1,503. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Shanghai Hongqiao Intl Airport?

You are more likely to see cheaper flights to Shanghai Hongqiao Intl Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Shanghai Hongqiao Intl Airport for around $1,137 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Shanghai Hongqiao Intl Airport from Seattle for as low as $804 on momondo.

How have Seattle to Shanghai Hongqiao Intl Airport flight prices changed over time?

As of October 2025, prices for Seattle to Shanghai Hongqiao Intl Airport flights are approximately 57% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Shanghai Hongqiao Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Shanghai Hongqiao Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Shanghai Hongqiao Intl Airport (SEA to SHA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Shanghai Hongqiao Intl Airport

Direct flights

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

    Shanghai Hongqiao Intl is 5710.7 mi away from Seattle/Tacoma Intl. Flights usually cover this in 17h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Shanghai Hongqiao Intl Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Shanghai Hongqiao Intl Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Shanghai Hongqiao Intl Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Shanghai Hongqiao Intl 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 Shanghai Hongqiao Intl Airport.

  • What documentation or ID do you need to fly to Shanghai Hongqiao Intl Airport?

    The travel and health documents you'll need for your trip to Shanghai Hongqiao Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Shanghai Hongqiao Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Shanghai Hongqiao Intl Airport?

Best airlines flying from Seattle to Shanghai Hongqiao Intl Airport

Compare and see reviews for airlines that fly from Seattle to Shanghai Hongqiao Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $532Free CancellationRating
7.9
7,972 reviews
Search Delta flights
Hainan AirlinesPriceFrom $537Free CancellationRating
8.2
45 reviews
Search Hainan Airlines flights
Asiana AirlinesPriceFrom $602Free CancellationRating
8.2
486 reviews
Search Asiana Airlines flights
Air CanadaPriceFrom $719Free CancellationRating
7.1
10,295 reviews
Search Air Canada flights
China AirlinesPriceFrom $825Free CancellationRating
8.3
768 reviews
Search China Airlines flights
Korean AirPriceFrom $876Free CancellationRating
8.4
1,149 reviews
Search Korean Air flights
ANAPriceFrom $915Free CancellationRating
8.4
984 reviews
Search ANA flights
EVA AirPriceFrom $1,057Free CancellationRating
8.4
1,250 reviews
Search EVA Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Shanghai?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Shanghai. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Shanghai with flexible booking policies on momondo?

All flight searches from Seattle to Shanghai on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Shanghai?

Once all potential Seattle to Shanghai flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Shanghai right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Shanghai now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Shanghai and let you know when they change.

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