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$423+ Cheap flights from Seattle (SEA) to Shanghai, China

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SHA
Jun 10 — Jun 171
Wed 6/10
Wed 6/17
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Shanghai are usually found in April or January, booked 42 days in advance, depart on a Sunday or Saturday and return on a Saturday

Cheap flight deals from Seattle to Shanghai

Cheapest flights from Seattle to Shanghai
Explore the most affordable flight options available from Seattle to Shanghai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 11, 2026.

This Booking.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:00 am
SEA
-
PVG
1 stop31h 50m
Hainan Airlines
Wed 11/1811:45 am
PVG
-
SEA
1 stop36h 20m
Hainan Airlines
Deal found 5/7$806
This Trip.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:10 pm
SEA
-
PVG
1 stop24h 20m
Philippine Airlines
Wed 9/164:00 pm
PVG
-
SEA
1 stop19h 05m
Philippine Airlines
Deal found 5/7$814
This FlightHub deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:05 am
SEA
-
PVG
1 stop32h 25m
Hainan Airlines
Fri 11/277:30 pm
PVG
-
SEA
1 stop28h 30m
Hainan Airlines
Deal found 5/7$818
This Fareboom deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:10 am
SEA
-
PVG
1 stop29h 55m
Multiple Airlines
Tue 11/1012:05 pm
PVG
-
SEA
1 stop22h 05m
Multiple Airlines
Deal found 5/7$826
This CrystalTravel deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:10 am
SEA
-
PVG
1 stop18h 55m
Asiana Airlines
Tue 9/151:10 pm
PVG
-
SEA
1 stop17h 05m
Asiana Airlines
Deal found 5/6$835
This FlightHub deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:05 am
SEA
-
PVG
1 stop22h 05m
Hainan Airlines
Wed 9/235:00 pm
PVG
-
SEA
1 stop31h 05m
Hainan Airlines
Deal found 5/10$838
This Trip.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:00 am
SEA
-
SHA
1 stop21h 05m
Hainan Airlines
Tue 11/108:35 am
SHA
-
SEA
1 stop15h 25m
Hainan Airlines
Deal found 5/6$839
This Cheapflightsfares deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:10 pm
SEA
-
PVG
1 stop24h 20m
Philippine Airlines
Wed 9/94:00 pm
PVG
-
SEA
1 stop19h 05m
Philippine Airlines
Deal found 5/10$840
This Fareboom deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:20 pm
SEA
-
PVG
2 stops25h 45m
Asiana Airlines
Tue 11/108:25 am
PVG
-
SEA
1 stop21h 30m
Asiana Airlines
Deal found 5/6$849
This Booking.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:00 am
SEA
-
PVG
1 stop31h 50m
Hainan Airlines
Wed 9/305:00 pm
PVG
-
SEA
1 stop31h 05m
Hainan Airlines
Deal found 5/9$851
This oojo deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:10 pm
SEA
-
PVG
1 stop24h 20m
Philippine Airlines
Wed 9/94:00 pm
PVG
-
SEA
1 stop19h 05m
Philippine Airlines
Deal found 5/8$852
This oojo deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:10 am
SEA
-
PVG
1 stop18h 55m
Asiana Airlines
Mon 9/141:10 pm
PVG
-
SEA
1 stop17h 05m
Asiana Airlines
Deal found 5/10$854

Find flight deals from Seattle to Shanghai

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Shanghai (CN2). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 11, 2026.

Round-trip from

$806
(Booking.com)

One-way from

$423
(Cheapflightsfares)

Popular in

December

Cheapest in

April

Average price

$1,195
From Seattle/Tacoma Intl to Shanghai
Search Deals
One-way flight from Seattle/Tacoma Intl to Shanghai
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Shanghai 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, Cheapflights users made 2,558,603 searches. Data last updated May 11, 2026.
Use the filters below to find and compare flights from Seattle to Shanghai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Tue 7/21

12:10 am-9:45 am

1 stop18h 35m

Shanghai Hongqiao Intl

Thu 9/3

10:55 am-3:15 pm

1 stop19h 20m

$1,276

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Wed 8/5

4:30 pm-7:50 pm

Nonstop12h 20m

Shanghai Pu Dong

Sat 8/29

5:30 pm-1:58 pm

Nonstop11h 28m

$1,348

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Sat 8/1

1:15 am-9:40 pm

2 stops29h 25m

Shanghai Hongqiao Intl

Sat 8/8

10:15 pm-4:35 pm

2 stops33h 20m

$1,411

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Wed 7/8

2:05 pm-8:55 pm

1 stop15h 50m

Shanghai Pu Dong

Tue 8/4

1:10 pm-10:48 pm

2 stops24h 38m

$1,422

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Fri 8/7

4:30 pm-7:50 pm

Nonstop12h 20m

Shanghai Pu Dong

Thu 8/27

6:25 pm-11:56 pm

1 stop20h 31m

$1,441
Quickest round-trip

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Sun 6/7

4:15 pm-7:50 pm

Nonstop12h 35m

Shanghai Pu Dong

Tue 6/23

5:30 pm-1:41 pm

Nonstop11h 11m

$1,498

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Thu 5/14

10:45 am-12:05 pm

2 stops34h 20m

Shanghai Hongqiao Intl

Thu 5/21

1:20 pm-10:05 am

2 stops35h 45m

$1,504

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Wed 7/8

4:20 pm-7:50 pm

Nonstop12h 30m

Shanghai Pu Dong

Tue 8/4

5:30 pm-1:58 pm

Nonstop11h 28m

$1,519

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Sat 7/4

4:20 pm-7:50 pm

Nonstop12h 30m

Shanghai Pu Dong

Tue 7/21

5:30 pm-1:58 pm

Nonstop11h 28m

$1,569

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Thu 7/2

4:20 pm-7:50 pm

Nonstop12h 30m

Shanghai Pu Dong

Sat 8/1

5:30 pm-1:58 pm

Nonstop11h 28m

$1,657

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 43 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Shanghai

Have a flexible travel schedule? Discover the best time to fly to Shanghai from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Shanghai

How far ahead should I book a flight from Seattle to Shanghai?

Booking 41 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Shanghai. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Shanghai?

Currently, October is the cheapest month in which you can book a flight from Seattle to Shanghai (average of $422). Flying from Seattle to Shanghai in July is currently the most expensive (average of $797). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to SHA?

Find hourly flight availability from Seattle to Shanghai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 11, 2026.

When flying from Seattle to Shanghai, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Seattle to Shanghai?

Reviews of airlines servicing Shanghai

Get insights into the airlines that provide service to Shanghai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shanghai. Reviews last updated May 11, 2026.
Read reviews from past customers who have flown Korean Air,ANA, andAsiana Airlines from Seattle to Shanghai. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,217 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,217 reviews
Korean Air
8.4
Very good
1,217 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very good
1,208 reviews
Korean Air
8.4
Very good
1,217 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.1
Very good
532 reviews
Korean Air
8.4
Very good
1,217 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
8,452 reviews
Korean Air
8.4
Very good
1,217 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
1,326 reviews
Korean Air
8.4
Very good
1,217 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Shanghai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Shanghai?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Shanghai. You should not have trouble finding flights to Shanghai from Seattle/Tacoma Intl; the airport handles an average of 1 outbound flight to Shanghai per day. You should also have plenty of airline options to choose from since 9 airlines have flights from the Seattle airport to Shanghai. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How long is the flight from Seattle to Shanghai?

    Asiana Airlines, Delta, and Korean Air can get you from Seattle to Shanghai in just under 12h 20m. Your travel time can differ by up to 24h 25m. Airlines will cover a distance of 5705 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Seattle to Shanghai round-trip?

    Currently priced at $437, Asiana Airlines will fly you from Seattle to Shanghai and back. In addition to Asiana Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and ANA - these airlines can fly you to your destination from $583 and $659, respectively. You may be able to fly from Seattle to Shanghai for 58% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seattle to Shanghai one-way?

    One-way options have recently been found by users for as low as $345 on Philippine Airlines. Other airlines that offer cheap prices include ANA from $352 and Asiana Airlines from $357 one-way.

  • Can I find deals for flights from Seattle to Shanghai that include hotel bookings?

    Yes. In addition to deals on Seattle to Shanghai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Shanghai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Shanghai.

  • Can I find deals for business class flights from Seattle to Shanghai?

    Yes. Cheapflights offers flight deals from Seattle to Shanghai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Shanghai?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Shanghai (average of $422). Flying from Seattle to Shanghai in July is currently the most expensive (average of $797). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Shanghai

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Pu Dong flights

Top 9 airlines flying from Seattle to Shanghai

Discover the top 9 airlines that operate flights from Seattle to Shanghai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$437Average$835FlexibilityNo cancel feeOn-time76%
DeltaCheapest$583Average$1,179FlexibilityNo cancel feeOn-timeN/A
ANACheapest$659Average$735FlexibilityNo cancel feeOn-time80%
Cathay PacificCheapest$664Average$876FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$679Average$831FlexibilityNo cancel feeOn-time81%
Hainan AirlinesCheapest$724Average$764FlexibilityNo cancel feeOn-time61%
China AirlinesCheapest$961Average$1,800FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$1,002Average$1,371FlexibilityNo cancel feeOn-time67%
EVA AirCheapest$1,061Average$1,487FlexibilityNo cancel feeOn-time74%

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