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$363+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SHA
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 79 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 December 12, 2025.

This Delta deal was found by Cheapflights users on 12/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:20 amSEA - PVG
Nonstop13h 30mDelta
Mon 12/296:00 pmPVG - SEA
Nonstop10h 45mDelta
Deal found 12/11$832
This oojo deal was found by Cheapflights users on 12/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/109:30 pmSEA - PVG
1 stop20h 20mPhilippine Airlines
Wed 12/174:55 pmPVG - SEA
1 stop17h 45mPhilippine Airlines
Deal found 12/9$946
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:06 amSEA - PVG
1 stop17h 49mUnited Airlines
Sat 1/31:30 pmPVG - SEA
2 stops49h 38mUnited Airlines
Deal found 12/9$1,034
This Air Canada deal was found by Cheapflights users on 12/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/108:00 pmSEA - PVG
2 stops35h 20mMultiple Airlines
Wed 12/175:35 pmPVG - SEA
1 stop17h 41mMultiple Airlines
Deal found 12/9$1,108
This oojo deal was found by Cheapflights users on 12/10. 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.
Thu 12/119:30 pmSEA - PVG
1 stop26h 20mPhilippine Airlines
Sun 12/2110:50 amPVG - SEA
1 stop23h 50mPhilippine Airlines
Deal found 12/10$1,114
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:20 amSEA - PVG
Nonstop13h 30mDelta
Sat 1/176:00 pmPVG - SEA
Nonstop10h 50mDelta
Deal found 12/10$1,160
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:05 pmSEA - PVG
1 stop33h 50mUnited Airlines
Wed 1/141:30 pmPVG - SEA
1 stop20h 57mUnited Airlines
Deal found 12/11$1,184
This CrystalTravel deal was found by Cheapflights users on 12/11. 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.
Fri 12/129:30 pmSEA - PVG
1 stop20h 20mPhilippine Airlines
Fri 12/1910:50 amPVG - SEA
1 stop23h 50mPhilippine Airlines
Deal found 12/11$1,187
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:05 pmSEA - PVG
1 stop33h 50mUnited Airlines
Fri 1/161:30 pmPVG - SEA
2 stops25h 46mUnited Airlines
Deal found 12/11$1,189
This oojo deal was found by Cheapflights users on 12/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:48 pmSEA - SHA
2 stops31h 32mCathay Pacific
Wed 12/171:35 pmSHA - SEA
2 stops45h 15mCathay Pacific
Deal found 12/9$1,352
This Air Canada deal was found by Cheapflights users on 12/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/108:00 pmSEA - SHA
2 stops34h 55mMultiple Airlines
Tue 12/302:00 pmSHA - SEA
2 stops21h 16mMultiple Airlines
Deal found 12/10$1,376
This FlightHub deal was found by Cheapflights users on 12/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:40 pmSEA - SHA
1 stop28h 45mANA
Wed 12/171:40 pmSHA - SEA
1 stop15h 40mANA
Deal found 12/9$1,404

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 December 12, 2025.

Round-trip from

$703
(KAYAK)

One-way from

$363
(IEagle)

Popular in

December

Cheapest in

February

Average price

$1,393
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. 2% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 2025.
Use the filters below to find and compare flights from Seattle to Shanghai that are best for you.

Fly from

Seattle

Fly to

Shanghai

Route

Depart

Return

Price

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Thu 4/23

12:10 am-10:05 am

1 stop18h 55m

Shanghai Pu Dong

Sun 5/3

8:35 am-2:55 pm

1 stop21h 20m

$705

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Fri 2/6

11:00 am-8:25 pm

1 stop17h 25m

Shanghai Pu Dong

Mon 3/2

8:50 am-9:00 am

1 stop16h 10m

$705

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Sun 4/19

12:10 am-8:55 pm

1 stop29h 45m

Shanghai Pu Dong

Tue 4/28

1:10 pm-2:55 pm

1 stop16h 45m

$705

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Thu 3/26

12:00 pm-8:25 pm

1 stop17h 25m

Shanghai Pu Dong

Wed 4/15

11:10 am-10:40 am

1 stop14h 30m

$705

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Wed 1/21

12:10 am-9:05 pm

1 stop28h 55m

Shanghai Pu Dong

Sun 2/1

8:25 am-1:55 pm

1 stop21h 30m

$705

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Fri 3/20

12:00 pm-9:45 am

1 stop30h 45m

Shanghai Pu Dong

Tue 4/14

1:40 pm-10:40 am

1 stop36h 00m

$705

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Wed 3/4

12:10 am-10:05 am

1 stop17h 55m

Shanghai Pu Dong

Mon 3/16

8:25 am-2:55 pm

1 stop21h 30m

$705

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Fri 3/20

12:00 pm-9:45 am

1 stop30h 45m

Shanghai Pu Dong

Thu 4/16

1:40 pm-10:40 am

1 stop36h 00m

$705

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Sun 3/15

12:00 pm-9:45 am

1 stop30h 45m

Shanghai Pu Dong

Tue 3/17

2:00 pm-10:00 am

1 stop35h 00m

$705

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Fri 3/6

11:00 am-9:45 am

1 stop30h 45m

Shanghai Pu Dong

Tue 3/17

11:20 am-10:00 am

1 stop13h 40m

$705

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 46 results
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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 December 5, 2025.

Booking 79 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, February is the cheapest month in which you can book a flight from Seattle to Shanghai (average of $434). Flying from Seattle to Shanghai in July is currently the most expensive (average of $907). 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 December 12, 2025.

It’s typically best to fly out from Seattle to Shanghai in the morning. Doing so could potentially save you 24% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Seattle to Shanghai?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Shanghai. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Shanghai flight should consider departing on Thursday mornings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 12, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air, and Asiana 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.
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Overall

8.5

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
EVA Air
8.5
Very good
1,296 reviews
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Overall

8.5

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Korean Air
8.4
Very good
1,184 reviews
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Overall

8.5

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Asiana Airlines
8.2
Very good
492 reviews
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Overall

8.5

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Delta
7.9
Good
8,007 reviews
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Overall

8.5

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Air Canada
7.1
Good
10,517 reviews
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Overall

8.5

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

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 8 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 and Korean Air can get you from Seattle to Shanghai in just under 17h 25m. Your travel time can differ by up to 1h 30m. 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 Hainan Airlines and Delta - these airlines can fly you to your destination from $457 and $466, respectively. You may be able to fly from Seattle to Shanghai for 61% 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 $366 on ANA. Other airlines that offer cheap prices include Hainan Airlines from $385 and Asiana Airlines from $388 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, Shilin Night Market, and Raohe Street Night Market. Taipei 101, Shilin Night Market and Raohe Street Night Market are located about 21.0 mi, 18.3 mi, and 21.6 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, February is the cheapest month in which you can book a flight from Seattle to Shanghai (average of $434). Flying from Seattle to Shanghai in July is currently the most expensive (average of $907). 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

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Top 8 airlines flying from Seattle to Shanghai

Discover the top 8 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$437Average$1,004FlexibilityNo cancel feeOn-time76%
Hainan AirlinesCheapest$472Average$871FlexibilityNo cancel feeOn-time61%
DeltaCheapest$497Average$1,186FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$594Average$1,079FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$694Average$970FlexibilityNo cancel feeOn-time81%
ANACheapest$778Average$1,043FlexibilityNo cancel feeOn-time80%
China AirlinesCheapest$810Average$1,140FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$1,038Average$1,328FlexibilityNo cancel feeOn-time74%

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