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$347+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SHA
Apr 22 — Apr 291
Mi 4/22
Mi 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Shanghai are usually found in February or March, 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 März 23, 2026.

This FlightHub deal was found by Cheapflights users on 3/18. 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.
Fr 4/2412:55 am
SEA
-
PVG
1 stop18h 10m
Asiana Airlines
Di 5/198:35 am
PVG
-
SEA
1 stop21h 20m
Asiana Airlines
Deal found 3/18$669
This oojo deal was found by Cheapflights users on 3/20. 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.
So 8/3012:55 am
SEA
-
PVG
1 stop18h 10m
Asiana Airlines
Mo 9/141:10 pm
PVG
-
SEA
1 stop16h 45m
Asiana Airlines
Deal found 3/20$673
This FlightHub deal was found by Cheapflights users on 3/22. 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.
Mo 9/1412:55 am
SEA
-
PVG
1 stop18h 10m
Asiana Airlines
Fr 12/44:25 pm
PVG
-
SEA
1 stop13h 30m
Asiana Airlines
Deal found 3/22$674
This Trip.com deal was found by Cheapflights users on 3/20. 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.
Di 10/2712:10 am
SEA
-
PVG
1 stop18h 55m
Asiana Airlines
So 11/81:10 pm
PVG
-
SEA
1 stop16h 45m
Asiana Airlines
Deal found 3/20$683
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/3011:05 am
SEA
-
PVG
1 stop22h 05m
Hainan Airlines
Mi 5/135:00 pm
PVG
-
SEA
1 stop31h 05m
Hainan Airlines
Deal found 3/18$684
This FlightHub deal was found by Cheapflights users on 3/18. 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.
Fr 4/2412:55 am
SEA
-
SHA
1 stop17h 50m
Asiana Airlines
Di 5/1910:55 am
SHA
-
SEA
1 stop19h 00m
Asiana Airlines
Deal found 3/18$688
This oojo deal was found by Cheapflights users on 3/18. 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.
Do 8/2712:55 am
SEA
-
SHA
1 stop17h 50m
Asiana Airlines
Fr 9/410:55 am
SHA
-
SEA
1 stop19h 00m
Asiana Airlines
Deal found 3/18$691
This FlightHub deal was found by Cheapflights users on 3/22. 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.
Mo 9/2812:55 am
SEA
-
SHA
1 stop17h 50m
Asiana Airlines
Do 10/1510:55 am
SHA
-
SEA
1 stop19h 00m
Asiana Airlines
Deal found 3/22$693
This BusinessClass deal was found by Cheapflights users on 3/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 9/2712:55 am
SEA
-
PVG
1 stop18h 10m
Asiana Airlines
Do 10/151:10 pm
PVG
-
SEA
1 stop16h 45m
Asiana Airlines
Deal found 3/22$696
This FlightHub deal was found by Cheapflights users on 3/18. 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.
So 4/1212:55 am
SEA
-
PVG
1 stop23h 05m
Asiana Airlines
Mo 5/411:40 am
PVG
-
SEA
1 stop18h 15m
Asiana Airlines
Deal found 3/18$697
This Fareboom deal was found by Cheapflights users on 3/20. 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.
Do 8/2711:10 pm
SEA
-
PVG
2 stops31h 45m
Multiple Airlines
Di 9/224:00 pm
PVG
-
SEA
1 stop19h 05m
Multiple Airlines
Deal found 3/20$699
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/304:30 pm
SEA
-
PVG
1 stop37h 10m
ANA
Do 5/78:25 am
PVG
-
SEA
1 stop21h 00m
ANA
Deal found 3/22$700

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 März 23, 2026.

Round-trip from

$669
(FlightHub)

One-way from

$347
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$874
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. 1% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 März 23, 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

So 4/12

12:50 pm-5:05 pm

1 stop37h 15m

Shanghai Hongqiao Intl

Sa 4/25

6:25 pm-10:40 am

1 stop31h 15m

$724

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mo 4/13

12:50 pm-5:05 pm

1 stop37h 15m

Shanghai Hongqiao Intl

Mo 5/4

6:25 pm-10:40 am

1 stop31h 15m

$724

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mi 4/29

12:50 pm-5:05 pm

1 stop37h 15m

Shanghai Hongqiao Intl

Di 5/12

6:25 pm-10:40 am

1 stop31h 15m

$724

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Do 4/23

12:50 pm-5:05 pm

1 stop37h 15m

Shanghai Hongqiao Intl

Mo 5/4

6:25 pm-10:40 am

1 stop31h 15m

$724

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mi 4/8

12:50 pm-5:05 pm

1 stop37h 15m

Shanghai Hongqiao Intl

Sa 4/25

6:25 pm-10:40 am

1 stop31h 15m

$724

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Do 4/30

12:50 pm-5:05 pm

1 stop37h 15m

Shanghai Hongqiao Intl

Di 5/12

6:25 pm-10:40 am

1 stop31h 15m

$874
Quickest round-trip

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Mi 4/29

4:00 pm-7:50 pm

Nonstop12h 50m

Shanghai Pu Dong

Di 5/12

5:30 pm-1:20 pm

Nonstop10h 50m

$989

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Do 4/9

7:12 am-5:45 pm

2 stops19h 33m

Shanghai Pu Dong

Mi 4/22

8:10 pm-11:37 am

1 stop30h 27m

$1,003

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Mo 4/13

8:42 am-5:25 pm

1 stop17h 43m

Shanghai Pu Dong

Di 4/21

12:10 pm-8:57 pm

1 stop23h 47m

$1,007

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

So 4/26

4:32 pm-5:45 pm

1 stop34h 13m

Shanghai Pu Dong

Fr 5/8

12:10 pm-7:48 pm

2 stops22h 38m

$1,019

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 39 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?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Shanghai. Price data was last updated on March 13, 2026.

Booking 42 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, April is the cheapest month in which you can book a flight from Seattle to Shanghai (average of $435). Flying from Seattle to Shanghai in July is currently the most expensive (average of $1,022). 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 März 23, 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.

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 März 23, 2026.
Read reviews from past customers who have flown Korean Air,Asiana Airlines, andDelta 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
1,202 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

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
1,202 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

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
506 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

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
8,319 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

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
1,222 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

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.
Air Canada
7.1
Good
10,834 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

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?

    Korean Air, Delta, and United Airlines can get you from Seattle to Shanghai in just under 12h 50m. 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 EVA Air - these airlines can fly you to your destination from $483 and $525, respectively. You may be able to fly from Seattle to Shanghai for 59% 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 $353 and Hainan Airlines from $370 one-way.

  • Where are the most common layover locations when flying from Seattle to Shanghai?

    Of the flights from Seattle to Shanghai that have layovers, most of them stop in Taipei City.

  • What are some popular things to do or see while on a layover in Taipei City?

    Most Taipei City visitors opt to spend their time experiencing Taipei 101, Raohe Street Night Market, and Shilin Night Market. Taipei 101, Raohe Street Night Market and Shilin Night Market are located about 21.0 mi, 21.6 mi, and 18.3 mi, respectively from Taipei City Taiwan Taoyuan Intl if you are interested in checking them out. Those on a layover in Taipei City in need of a rental car can book one at Taipei City Taiwan Taoyuan Intl for about $70.

  • Where are the least popular layover locations for Seattle to Shanghai flights?

    Seattle to Shanghai flights have a layover in Seoul the least frequently.

  • 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, April is the cheapest month in which you can book a flight from Seattle to Shanghai (average of $435). Flying from Seattle to Shanghai in July is currently the most expensive (average of $1,022). 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 März 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$437Average$867FlexibilityNo cancel feeOn-time76%
DeltaCheapest$483Average$1,183FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$525Average$1,412FlexibilityNo cancel feeOn-time74%
Hainan AirlinesCheapest$537Average$863FlexibilityNo cancel feeOn-time61%
Air CanadaCheapest$594Average$1,128FlexibilityNo cancel feeOn-time67%
ANACheapest$659Average$756FlexibilityNo cancel feeOn-time80%
Cathay PacificCheapest$664Average$867FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$673Average$856FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$810Average$1,210FlexibilityNo cancel feeOn-time70%

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