$367 Cheap Flights from Seattle (SEA) to Shanghai (SHA)

View $367 flight on Tue, Nov 18, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Hongqiao International Airport (SHA)

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Cheap Flights from Seattle to Shanghai (SEA-SHA)

Prices were available within the past 7 days and start at $367 for one-way flights and $675 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hainan Airlines
Tue, Nov 18 - Mon, Dec 1
SEA
Seattle
SHA
Shanghai
$675 Roundtrip, found 6 hours ago
$675
Roundtrip
found 6 hours ago
Select Hainan Airlines flight, departing Tue, Nov 18 from Seattle to Shanghai, returning Mon, Dec 1, priced at $675 found 6 hours ago
Air China
Fri, Sep 26 - Wed, Oct 15
SEA
Seattle
SHA
Shanghai
$953 Roundtrip, found 1 day ago
$953
Roundtrip
found 1 day ago
Select Air China flight, departing Fri, Sep 26 from Seattle to Shanghai, returning Wed, Oct 15, priced at $953 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Shanghai (SHA)

November is typically the cheapest month to fly

From $754 - $1,148 per traveler.

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA) cost?
Get a cheap one-way flight from $367 or cheap return flight from $675 from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA)?
November is the cheapest month to fly from SEA to SHA. Traveling during quieter months is often the key to finding a great deal.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from SEA to SHA. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA)?
There aren't any daily nonstop flights departing from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from SEA to SHA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on various factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA)?
Opt for a flight from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Shanghai from Seattle - Tacoma Intl. Airport (SEA)?
Explore your flight options from Seattle - Tacoma Intl. Airport (SEA) to Pudong Intl. Airport (PVG). This is the only airport in Shanghai you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA) last-minute?
Holding off until right before your break to book a ticket from SEA to SHA generally means paying more. While you might find some last-minute offers, they're not always guaranteed. Allow some flexibility in your schedule to boost your chances of snagging a bargain.
Is it cheaper to book a SEA to SHA flight and hotel package?
Securing a SEA to SHA flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our wide range of hotels and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Hongqiao Intl. Airport (SHA)?
Typically, you're able to cancel or reschedule your SEA to SHA flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more information, visit our Customer Service portal.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Hongqiao Intl.
Airlines serving
Air China, All Nippon Airways, Cathay Pacific, Hainan Airlines, Japan Airlines, United
Roundtrip price
$674
Distance
5723 mi

Book with confidence

Book with confidence

Seattle to Shanghai Flights

The cheapest times to fly from Seattle to Shanghai

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Shanghai are during the month of November. You can find some of the cheapest flights from Seattle to Shanghai with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Shanghai

Sunday is one of the best days to book for cheap flights from Seattle to Shanghai: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Shanghai

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Shanghai in 2025. You can also book with separate airlines for your outbound and return journeys, from $367 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Shanghai flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Shanghai airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Shanghai Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.