Cheapest airlines flights from Shanghai to Seattle

You can choose from 7 airlines that fly from Shanghai to Seattle, including Delta Air Lines, Philippine Airlines, and Korean Air. Delta Air Lines has lowest fares on this route.
Delta Air Lines logo Delta Air Lines
Philippine Airlines logo Philippine Airlines
Korean Air logo Korean Air
Air Canada logo Air Canada
Japan Airlines logo Japan Airlines
Asiana Airlines logo Asiana Airlines
Cathay Pacific logo Cathay Pacific
Airlines are determined based on actual purchased flight tickets from Shanghai to Seattle according to previous 12 months data from Trip.com.

Search for direct flights from Shanghai to Seattle in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$516, and round-trip direct flights start at US$939.

Displayed flight fares from Shanghai to Seattle are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Shanghai to Seattle Flight Details

The distance between Shanghai and Seattle is about 9,217.64 km. The average flying time from Shanghai to Seattle is around 10 hours 56 minutes. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$516
Cheapest return ticket priceUS$887
Cheapest monthOctober
Peak season for travelJuly
Flight distance9,217.64 km
Average flight time10 hours 56 minutes
Popular airlineDelta Air Lines
Flight statistics for the Shanghai–Seattle route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Shanghai to Seattle

Which month has the cheapest one-way flights from Shanghai to Seattle?

Average monthly one-way flight prices from Shanghai to Seattle, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Shanghai to Seattle is November, with an average price of US$559; while the month with the highest flight price is usually April, with an average price of up to US$1,013.

US$1,013
US$786
US$559
US$332
    Cheapest
  • US$796
    Jun
  • US$807
    Jul
  • US$924
    Aug
  • US$653
    Sep
  • US$582
    Oct
  • US$559
    Nov
  • US$613
    Dec
  • US$862
    Jan
  • US$719
    Feb
  • US$812
    Mar
  • US$1,013
    Apr
  • US$682
    May

Which month has the cheapest round-trip flights from Shanghai to Seattle?

The average price of round-trip flights from Shanghai to Seattle purchased by Trip.com users by month over the past 12 months.

Based on data from Trip.com, the lowest prices for round-trip flights from Shanghai to Seattle are found during September, with an average price of US$850. Conversely, the highest prices are found during August, with an average price of up to US$1,554.

US$1,554
US$1,202
US$850
US$498
    Cheapest
  • US$1,051
    Jun
  • US$1,103
    Jul
  • US$1,554
    Aug
  • US$850
    Sep
  • US$959
    Oct
  • US$926
    Nov
  • US$947
    Dec
  • US$947
    Jan
  • US$1,028
    Feb
  • US$1,027
    Mar
  • US$1,110
    Apr
  • US$968
    May

Frequently Asked Questions

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

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as US$516 on Cheapest nonstop routes (e.g. PVG to SEA on Thu, Jun 25), while Asiana Airlines offers Cheapest nonstop round-trips from US$887 departing on Wed, Jul 1 and returning on Sun, Jul 5.
  • At the moment, you can catch a nonstop flight from Shanghai to Seattle with the following airlines, including: Delta Air Lines Japan Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 10 hours 56 minutes to fly from Shanghai to Seattle.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Shanghai to Seattle 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.
  • Based on Trip.com data in the past 4 weeks, there is 3 flight per week flying from Shanghai to Seattle. You can check the weekly schedule for popular airlines on this route below: Delta Air Lines: S/M/T/W/T/F/S -- DL280 (17:27)
  • To find best deals on flights from Shanghai to Seattle, 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 Thu, Jun 25, with one-way flights priced at just US$516.
    · 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 Seattle travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Shanghai to Seattle is October, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Shanghai to Seattle on June 11, 2026 with Philippine Airlines, with prices starting at US$826.
  • You can land at any one of the following hubs in Seattle, with Shanghai Pudong International Airport to Seattle-Tacoma International Airport (PVG-SEA) is by far the most common option on this route: King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE) Seattle-Tacoma International Airport (SEA).
  • The time difference between Seattle and Shanghai is 16h.
  • 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.

Trip.com Airline Insights on Flights from Shanghai to Seattle

Which airline offers the cheapest direct flights from Shanghai to Seattle?

Data is based on the average price of all nonstop flights from Shanghai to Seattle on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Hainan Airlines provides the lowest-priced direct flights from Shanghai to Seattle, with fares starting at US$414.

US$258
US$414
US$571
US$727
US$883
Hainan Airlines
US$414
Hainan Airlines
Philippine Airlines
US$656
Philippine Airlines
Asiana Airlines
US$747
Asiana Airlines
Korean Air
US$830
Korean Air
United Airlines
US$862
United Airlines
Delta Air Lines
US$883
Delta Air Lines

How many flights fly from Shanghai to Seattle daily?

The data is based on the flight numbers for each day of the week from Shanghai to Seattle within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Shanghai to Seattle is the highest on Friday/Saturday and the lowest on Monday/Tuesday/Wednesday/Thursday/Sunday.

5
4
Highest
4
Mon
4
Tue
4
Wed
4
Thu
5
Fri
5
Sat
4
Sun

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.