Cheap Flights from Seattle to Shanghai from US$407

Frequently Asked Questions

• What are the cheapest flights from Seattle to Shanghai (SEA-SHA)?

  Based on Trip.com data, Alaska Airlines offers one-way fares as low as US$407 on Cheapest nonstop routes (e.g. SEA to PVG on Fri, Aug 28), while Hainan Airlines offers Cheapest nonstop round-trips from US$837 departing on Tue, Sep 1 and returning on Mon, Sep 7.

• Which airlines offer direct flights from Seattle to Shanghai?

  At the moment, you can catch a nonstop flight from Seattle to Shanghai with the following airlines, including: Delta Air Lines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Seattle to Shanghai?

  It takes about 12 hours 40 minutes to fly from Seattle to Shanghai.

• When is the best time to book flights from Seattle to Shanghai?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Shanghai is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Seattle to Shanghai?

  Based on Trip.com data in the past 4 weeks, there is 5 flight per week flying from Seattle to Shanghai. You can check the weekly schedule for popular airlines on this route below: Delta Air Lines: S/M/T/W/T/F/S -- DL281 (17:13)

• How can I find the best deals on flights from Seattle to Shanghai?

  To find best deals on flights from Seattle to Shanghai, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Aug 28, with one-way flights priced at just US$407.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Shanghai travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Seattle (SEA) to Shanghai (SHA) the cheapest?

  The cheapest months to fly from Seattle to Shanghai is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Seattle to Shanghai on?

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Seattle to Shanghai on August 27, 2026 with Alaska Airlines, with prices starting at US$358.

• Which airports can I fly to for Shanghai from Seattle?

  You can land at any one of the following hubs in Shanghai, with Seattle-Tacoma International Airport to Shanghai Pudong International Airport (SEA-PVG) is by far the most common option on this route: Shanghai Pudong International Airport (PVG) Shanghai Hongqiao International Airport (SHA).

• Is there any time difference between Seattle and Shanghai?

  The time difference between Shanghai and Seattle is 16h.

• How do I change or cancel my ticket from Seattle to Shanghai?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Seattle to Shanghai?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Seattle to Shanghai is US$648. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Seattle to Shanghai?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Seattle to Shanghai is US$1,144. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Seattle to Shanghai on Trip.com?

  Enter Seattle and Shanghai, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.