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$477+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SHA
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Shanghai are usually found in March or April, booked 16 days in advance, depart on a Sunday or Saturday and return on a Saturday

Cheap 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 July 3, 2025.

Round-trip from

$915
(Korean Air)

One-way from

$477
(Mytrip)

Popular in

July

Cheapest in

March

Average price

$1,403
From Seattle/Tacoma Intl to Shanghai
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One-way flight from Seattle/Tacoma Intl to Shanghai
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Highest demand for flights based on searches. 12% potential increase in price ($166 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 3, 2025.

This Korean Air deal was found by Cheapflights users on 7/1. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/612:50 pmSEA - PVG
1 stop29h 50mKorean Air
Sat 11/12:00 pmPVG - SEA
1 stop35h 00mKorean Air
Deal found 7/1$915
This oojo deal was found by Cheapflights users on 7/2. 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.
Tue 8/122:30 pmSEA - PVG
1 stop33h 30mAsiana Airlines
Thu 8/214:25 pmPVG - SEA
1 stop35h 20mAsiana Airlines
Deal found 7/2$920
This FlightHub deal was found by Cheapflights users on 7/1. 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 8/2710:00 amSEA - PVG
2 stops23h 35mANA
Wed 9/108:25 amPVG - SEA
2 stops25h 11mANA
Deal found 7/1$922
This oojo deal was found by Cheapflights users on 7/2. 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 8/202:30 pmSEA - SHA
1 stop35h 30mAsiana Airlines
Wed 9/106:10 pmSHA - SEA
1 stop33h 20mAsiana Airlines
Deal found 7/2$923
This Mytrip deal was found by Cheapflights users on 7/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/105:30 amSEA - PVG
2 stops26h 50mMultiple Airlines
Wed 9/173:55 pmPVG - SEA
1 stop17h 41mMultiple Airlines
Deal found 7/2$926
This Cheapflightsfares deal was found by Cheapflights users on 7/3. 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.
Mon 8/255:35 pmSEA - SHA
2 stops27h 40mANA
Mon 9/151:35 pmSHA - SEA
2 stops20h 01mANA
Deal found 7/3$930
This KAYAK deal was found by Cheapflights users on 7/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1011:35 pmSEA - PVG
1 stop23h 55mPhilippine Airlines
Sun 8/314:00 pmPVG - SEA
1 stop18h 15mPhilippine Airlines
Deal found 7/2$931
This oojo deal was found by Cheapflights users on 7/2. 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 10/51:10 amSEA - PVG
1 stop18h 40mChina Airlines
Mon 12/87:50 pmPVG - SEA
1 stop14h 25mChina Airlines
Deal found 7/2$933
This FlightHub deal was found by Cheapflights users on 7/2. 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 8/201:20 pmSEA - SHA
1 stop36h 45mKorean Air
Wed 9/106:25 pmSHA - SEA
1 stop31h 15mKorean Air
Deal found 7/2$936
This Air Canada deal was found by Cheapflights users on 7/3. 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.
Tue 9/307:15 pmSEA - SHA
2 stops36h 25mMultiple Airlines
Tue 10/1411:30 amSHA - SEA
2 stops22h 06mMultiple Airlines
Deal found 7/3$972
This FlightHub deal was found by Cheapflights users on 7/1. 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.
Sat 9/2711:00 amSEA - SHA
1 stop32h 00mHainan Airlines
Mon 10/2012:10 pmSHA - SEA
1 stop35h 50mHainan Airlines
Deal found 7/1$982
This FlightHub deal was found by Cheapflights users on 7/3. 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 9/115:14 pmSEA - SHA
2 stops31h 46mAir China
Sun 9/217:55 amSHA - SEA
2 stops29h 20mAir China
Deal found 7/3$1,013

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 July 3, 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

Mon 10/6

12:50 pm-9:40 am

1 stop29h 50m

Shanghai Pu Dong

Sat 11/1

2:00 pm-10:00 am

1 stop35h 00m

$915

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Tue 8/12

2:30 pm-3:00 pm

1 stop33h 30m

Shanghai Pu Dong

Thu 8/21

4:25 pm-12:45 pm

1 stop35h 20m

$920

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Wed 8/27

10:00 am-12:35 am

2 stops23h 35m

Shanghai Pu Dong

Wed 9/10

8:25 am-6:36 pm

2 stops25h 11m

$922

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Wed 8/20

2:30 pm-5:00 pm

1 stop35h 30m

Shanghai Hongqiao Intl

Wed 9/10

6:10 pm-12:30 pm

1 stop33h 20m

$923

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Wed 9/10

5:30 am-11:20 pm

2 stops26h 50m

Shanghai Pu Dong

Wed 9/17

3:55 pm-6:36 pm

1 stop17h 41m

$926

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Mon 8/25

5:35 pm-12:15 pm

2 stops27h 40m

Shanghai Hongqiao Intl

Mon 9/15

1:35 pm-6:36 pm

2 stops20h 01m

$930

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Sun 8/10

11:35 pm-2:30 pm

1 stop23h 55m

Shanghai Pu Dong

Wed 9/3

4:00 pm-7:15 pm

1 stop18h 15m

$931

SeattleShanghai

SEA - PVG

SEAPVG

Seattle/Tacoma Intl

Sun 10/5

1:10 am-10:50 am

1 stop18h 40m

Shanghai Pu Dong

Mon 12/8

7:50 pm-6:15 pm

1 stop14h 25m

$933

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Wed 8/20

1:20 pm-5:05 pm

1 stop36h 45m

Shanghai Hongqiao Intl

Wed 9/10

6:25 pm-10:40 am

1 stop31h 15m

$936

SeattleShanghai

SEA - SHA

SEASHA

Seattle/Tacoma Intl

Tue 9/30

7:15 pm-10:40 pm

2 stops36h 25m

Shanghai Hongqiao Intl

Tue 10/14

11:30 am-6:36 pm

2 stops22h 06m

$972

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 31 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 June 27, 2025.

Booking 16 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 $1,123). Flying from Seattle to Shanghai in July is currently the most expensive (average of $1,609). 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 July 3, 2025.

It’s typically best to fly out from Seattle to Shanghai in the afternoon. Doing so could potentially save you 26% 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 Wednesday afternoons when fares are most often at their lowest. Sunday 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 July 3, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air, and ANA 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
8.4
Very good
1,215 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,215 reviews
EVA Air
8.4
Very good
1,215 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,101 reviews
EVA Air
8.4
Very good
1,215 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.4
Very good
893 reviews
EVA Air
8.4
Very good
1,215 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
744 reviews
EVA Air
8.4
Very good
1,215 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Asiana Airlines
8.2
Very good
452 reviews
EVA Air
8.4
Very good
1,215 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 0 outbound flights 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.

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

    Currently priced at $915, Korean Air will fly you from Seattle to Shanghai and back. In addition to Korean Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Asiana Airlines and ANA - these airlines can fly you to your destination from $920 and $922, respectively. You may be able to fly from Seattle to Shanghai for 21% 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 $483 on Korean Air. Other airlines that offer cheap prices include Asiana Airlines from $516 and Hainan Airlines from $539 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. Taipei City is followed by Tokyo in terms of the most popular layover location on flights from Seattle to Shanghai.

  • 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 $78.

  • What are some popular points of interest to see during a layover in Tokyo?

    The majority of Tokyo visitors spend their time at Akihabara Electric Town, Tsukiji Outer Market, and Ueno Koen. Travelers on a layover in Tokyo can visit Akihabara Electric Town, Tsukiji Outer Market, and Ueno Koen, by traveling 10.3 mi, 7.9 mi, and 11.5 mi, respectively after landing at Tokyo Haneda. Travelers can book a car rental at Tokyo Haneda for about $71 per day to make their sightseeing more efficient.

  • 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 $1,123). Flying from Seattle to Shanghai in July is currently the most expensive (average of $1,609). 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 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest$537Average$1,102FlexibilityNo cancel feeOn-time61%
DeltaCheapest$584Average$1,259FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$712Average$1,355FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$719Average$1,197FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$732Average$1,088FlexibilityNo cancel feeOn-time76%
China AirlinesCheapest$825Average$1,090FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$907Average$1,071FlexibilityNo cancel feeOn-time81%
ANACheapest$949Average$1,075FlexibilityNo cancel feeOn-time80%
EVA AirCheapest$1,038Average$1,379FlexibilityNo cancel feeOn-time74%

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