$451 Cheap Flights from Seattle (SEA) to Shanghai (SHA)

View $451 flight on Sat, Nov 21, 2026Opens 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 $451 for one-way flights and $863 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hainan Airlines
Sat, Nov 21 - Sat, Nov 28
SEA
Seattle
SHA
Shanghai
$863 Roundtrip, found 1 hour ago
$863
Roundtrip
found 1 hour ago
Select Hainan Airlines flight, departing Sat, Nov 21 from Seattle to Shanghai, returning Sat, Nov 28, priced at $863 found 1 hour ago
Air China
Sat, Nov 21 - Sat, Dec 12
SEA
Seattle
SHA
Shanghai
$1,398 Roundtrip, found 3 days ago
$1,398
Roundtrip
found 3 days ago
Select Air China flight, departing Sat, Nov 21 from Seattle to Shanghai, returning Sat, Dec 12, priced at $1,398 found 3 days ago

Alternative airports near Shanghai

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Pudong Intl. PVG. Cheapest option available. Average driving time to city center is 53 minutes. Flights from $1,262
PVG
Pudong Intl.
Cheapest
Average driving time to city center53 min
Flights from $1,262

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) cost?
You can find cheap one-way flights and cheap return flights from $863 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) with Expedia. One-way flights generally range between $519 and $7139, and roundtrip flights usually range from $988 to $7479. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
November is the cheapest month to fly from Seattle (SEA) to Shanghai (SHA), with average return fares around $1,003. This price is about 18% lower than the average fare for the year, as travel demand typically decreases during this time. Other affordable months to consider are March and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
Enter SEA to SHA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
Delta is one of the cheapest airlines offering nonstop flights from Seattle, WA (SEA) to Shanghai (SHA-Hongqiao Intl.), with round-trip tickets starting from around $1,133. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
The best airline to fly with from Seattle, WA (SEA) to Shanghai (SHA) will differ from traveler to traveler. If you like to fly early, Delta offers early morning flights. If price is the most important factor, Delta typically offers the lowest fares. Alaska Airlines offers the most daily flights from SEA to SHA, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
For flights from Seattle (SEA) to Shanghai (SHA), November and March are the best months to fly. Average return flight prices are around $1,003, making these months relatively affordable for international travel. March offers a chance to enjoy spring in Shanghai, while November can provide a unique cultural experience.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
The earliest flight from Seattle - Tacoma International Airport (SEA) to Hongqiao International Airport (SHA) typically departs at around 12:05 AM, operated by Starlux Airlines and Cathay Pacific. This seasonal service is active in March, and an early departure can help you maximize your time in Shanghai. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Hongqiao Intl. (SHA) are from 9am to 12pm. About 28% of passengers prefer this time window. Many major carriers, including Delta, Hainan Airlines and Korean Air, offer flights during this window. This timing is favored as it lets you enjoy a morning in Seattle before your flight.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
A flight from SEA to SHA with a layover takes around 25 hours, with the route covering approximately 5,724 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
Business class is available on flights from SEA to SHA. Airlines that offer business class service on this route include:

  • Emirates
  • Asiana Airlines
  • United Airlines
  • All Nippon Airways
  • Cathay Pacific
  • Korean Air
  • Delta Air Lines
  • China Airlines
  • EVA Airways
  • Air Canada

First class cabins are available on:

  • Emirates
  • British Airways
  • United Airlines

How much is a business class flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
A direct, return business class ticket from Seattle, WA (SEA) to Shanghai (SHA) typically costs between $8,127 - $12,719. A non-stop, one-way business class flight is usually around $2,545 - $5,176 per adult in economy/coach class. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Shanghai from Seattle - Tacoma Intl. (SEA)?
From Seattle - Tacoma Intl. (SEA), you can fly into Hongqiao Intl. (SHA) and Pudong Intl. (PVG) in Shanghai. Some flights may connect through major hubs like San Francisco Intl. (SFO), Los Angeles Intl. (LAX), Vancouver Intl. (YVR) before reaching Shanghai. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Shanghai (SHA-Hongqiao Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Hongqiao Intl.
Airlines serving
Air China, All Nippon Airways, Cathay Pacific, Hainan Airlines
Roundtrip price
$862
Distance
5723 mi

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 2026. You can also book with separate airlines for your outbound and return journeys, from $451 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

*Flight schedules are subject to change.

*Available to One Key members.

 

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