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Cheap flights from Seattle to Shanghai from $440

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 9/9. 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 Shanghai

Cheap round-trip flights

Enter your travel dates to find the best prices.
Hainan Airlines Logo
11:00 am - 11:05 pm
SEA
-
SHA
21h 05m
1 stop
Hainan Airlines Logo
8:35 am - 8:00 am
SHA
-
SEA
15h 25m
1 stop
$851Hainan Airlines
Tue, Oct 20 - Tue, Nov 10
Hainan Airlines Logo
11:00 am - 11:05 pm
SEA
-
SHA
21h 05m
1 stop
Hainan Airlines Logo
8:35 am - 8:00 am
SHA
-
SEA
15h 25m
1 stop
$867Hainan Airlines
Tue, Oct 20 - Tue, Nov 24
Asiana Airlines Logo
12:10 am - 9:45 am
SEA
-
SHA
18h 35m
1 stop
Asiana Airlines Logo
6:15 pm - 1:55 pm
SHA
-
SEA
35h 40m
1 stop
$873Asiana Airlines
Tue, Sep 29 - Mon, Nov 9
Asiana Airlines Logo
12:10 am - 9:45 am
SEA
-
SHA
18h 35m
1 stop
Asiana Airlines Logo
10:55 am - 3:15 pm
SHA
-
SEA
19h 20m
1 stop
$874Asiana Airlines
Tue, Aug 25 - Mon, Sep 7
Cathay Pacific Logo
12:25 pm - 12:05 pm
SEA
-
SHA
32h 40m
1 stop
Cathay Pacific Logo
10:30 pm - 10:20 am
SHA
-
SEA
26h 50m
1 stop
$876Cathay Pacific
Mon, Aug 31 - Mon, Sep 14
Hainan Airlines Logo
11:00 am - 11:05 pm
SEA
-
SHA
21h 05m
1 stop
Hainan Airlines Logo
8:35 am - 8:00 am
SHA
-
SEA
15h 25m
1 stop
$878Hainan Airlines
Sat, Oct 17 - Sat, Nov 7
Asiana Airlines Logo
12:10 am - 9:45 am
SEA
-
SHA
18h 35m
1 stop
Asiana Airlines Logo
6:15 pm - 1:55 pm
SHA
-
SEA
35h 40m
1 stop
$884Asiana Airlines
Mon, Oct 12 - Wed, Nov 11
Hainan Airlines Logo
11:00 am - 11:05 pm
SEA
-
SHA
21h 05m
1 stop
Hainan Airlines Logo
8:20 am - 9:00 am
SHA
-
SEA
15h 40m
1 stop
$887Hainan Airlines
Tue, Oct 20 - Sat, Oct 24
Cathay Pacific Logo
12:25 pm - 12:05 pm
SEA
-
SHA
32h 40m
1 stop
Cathay Pacific Logo
10:30 pm - 10:20 am
SHA
-
SEA
26h 50m
1 stop
$888Cathay Pacific
Mon, Aug 31 - Mon, Sep 14
Hainan Airlines Logo
11:00 am - 10:55 am
SEA
-
SHA
32h 55m
1 stop
Hainan Airlines Logo
8:20 am - 9:00 am
SHA
-
SEA
15h 40m
1 stop
$889Hainan Airlines
Tue, Sep 1 - Tue, Oct 13

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
Aug 31
SEA12:25 pmSeattle/Tacoma Intl
32h 40m
1 stop
SHA12:05 pmShanghai Hongqiao Intl
Sep 14
SHA10:30 pmShanghai Hongqiao Intl
26h 50m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$876
Cathay Pacific
Aug 31
SEA12:25 pmSeattle/Tacoma Intl
32h 40m
1 stop
SHA12:05 pmShanghai Hongqiao Intl
Sep 14
SHA10:30 pmShanghai Hongqiao Intl
26h 50m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$894
Cathay Pacific
Aug 31
SEA12:25 pmSeattle/Tacoma Intl
32h 40m
1 stop
SHA12:05 pmShanghai Hongqiao Intl
Sep 14
SHA10:30 pmShanghai Hongqiao Intl
26h 50m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$896

Asiana Airlines flights from Seattle to Shanghai Hongqiao Intl Airport

Our best Asiana Airlines deals on Seattle to Shanghai Hongqiao Intl Airport flight tickets
Asiana Airlines
Sep 15
SEA12:10 amSeattle/Tacoma Intl
18h 35m
1 stop
SHA9:45 amShanghai Hongqiao Intl
Nov 18
SHA6:15 pmShanghai Hongqiao Intl
35h 40m
1 stop
SEA1:55 pmSeattle/Tacoma Intl
$873
Asiana Airlines
Sep 29
SEA12:10 amSeattle/Tacoma Intl
18h 35m
1 stop
SHA9:45 amShanghai Hongqiao Intl
Nov 16
SHA6:15 pmShanghai Hongqiao Intl
35h 40m
1 stop
SEA1:55 pmSeattle/Tacoma Intl
$874
Asiana Airlines
Oct 12
SEA12:10 amSeattle/Tacoma Intl
18h 35m
1 stop
SHA9:45 amShanghai Hongqiao Intl
Nov 11
SHA6:15 pmShanghai Hongqiao Intl
35h 40m
1 stop
SEA1:55 pmSeattle/Tacoma Intl
$884

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 May 20, 2026.
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

Cheapest round-trip
Quickest round-trip

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Tue 10/20

11:00 am-11:05 pm

1 stop21h 05m

Shanghai Hongqiao Intl

Tue 11/10

8:35 am-8:00 am

1 stop15h 25m

$851

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Tue 10/20

11:00 am-11:05 pm

1 stop21h 05m

Shanghai Hongqiao Intl

Tue 11/24

8:35 am-8:00 am

1 stop15h 25m

$867

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Tue 9/29

12:10 am-9:45 am

1 stop18h 35m

Shanghai Hongqiao Intl

Mon 11/9

6:15 pm-1:55 pm

1 stop35h 40m

$873

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Tue 8/25

12:10 am-9:45 am

1 stop18h 35m

Shanghai Hongqiao Intl

Mon 9/7

10:55 am-3:15 pm

1 stop19h 20m

$874

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mon 8/31

12:25 pm-12:05 pm

1 stop32h 40m

Shanghai Hongqiao Intl

Mon 9/14

10:30 pm-10:20 am

1 stop26h 50m

$876

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Sat 10/17

11:00 am-11:05 pm

1 stop21h 05m

Shanghai Hongqiao Intl

Sat 11/7

8:35 am-8:00 am

1 stop15h 25m

$878

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mon 10/12

12:10 am-9:45 am

1 stop18h 35m

Shanghai Hongqiao Intl

Wed 11/11

6:15 pm-1:55 pm

1 stop35h 40m

$884

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Tue 10/20

11:00 am-11:05 pm

1 stop21h 05m

Shanghai Hongqiao Intl

Sat 10/24

8:20 am-9:00 am

1 stop15h 40m

$887

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mon 8/31

12:25 pm-12:05 pm

1 stop32h 40m

Shanghai Hongqiao Intl

Mon 9/14

10:30 pm-10:20 am

1 stop26h 50m

$888

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Tue 9/1

11:00 am-10:55 am

1 stop32h 55m

Shanghai Hongqiao Intl

Tue 10/13

8:20 am-9:00 am

1 stop15h 40m

$889

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 typical price of a round-trip flight between Seattle and Shanghai Hongqiao Intl Airport?

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 April. Flight prices, which tend to average around $705, 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 April, then you should wait until January to fly from Seattle, when ticket prices are also cheap, with an average price of $706.

How far in advance should I book a flight from Seattle 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 $986 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 $833 on momondo.

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

As of May 2026, prices for Seattle to Shanghai Hongqiao Intl Airport flights are approximately 17% 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

Fastest flight time

12h 20m

Direct flights

None
The fastest flight from Seattle to Shanghai Hongqiao Intl Airport takes 12h 20m
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.
Search flight deals

Frequently asked questions about flying from Seattle to Shanghai Hongqiao Intl Airport

  • 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 12h 20m, 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
Asiana AirlinesPriceFrom $437Free CancellationRating
8.1
534 reviews
Search Asiana Airlines flights
DeltaPriceFrom $583Free CancellationRating
7.9
8,452 reviews
Search Delta flights
ANAPriceFrom $660Free CancellationRating
8.3
1,211 reviews
Search ANA flights
Korean AirPriceFrom $679Free CancellationRating
8.4
1,218 reviews
Search Korean Air flights
Cathay PacificPriceFrom $689Free CancellationRating
7.6
1,337 reviews
Search Cathay Pacific flights
Hainan AirlinesPriceFrom $724Free CancellationRating
8.3
66 reviews
Search Hainan Airlines flights
China AirlinesPriceFrom $961Free CancellationRating
8.3
826 reviews
Search China Airlines 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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