Trip.com
>
Flights
>
Flights to China
>
Flights to Shanghai
Hotels in Shanghai
>
Flights from Seattle to Shanghai

Hi, I've summed up all the key info for Seattle to Shanghai flights

Cheapest one-way

$ 399
Asiana Airlines Sat, Oct 17

41% below next 30d avg. ($676)

Cheapest round-trip

$ 815
Asiana Airlines Wed, Sep 30

28% below next 30d avg. ($1,130)

When to travel

November Cheapest month
July Peak month

Fastest flight

12h 50m Avg: 12h 40m

Recommended airlines

With a lowest one-way fare of $399 , travelers can expect an average price of $676 for upcoming trips, while round-trip tickets start at $815 . Flights typically take around 12h 40m , but the fastest nonstop option completes the journey in just 12h 50m minutes. There are 6 flights weekly on this route. You can arrive at any of the following airports in Shanghai: Shanghai Pudong International Airport (PVG) , and Shanghai Hongqiao International Airport (SHA) . Flights from Seattle-Tacoma International Airport to Shanghai Pudong International Airport (SEA-PVG) are by far the most popular option for this route. To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 3d ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from Seattle to Shanghai over the next 90 days, with one-way fares from $399 and round-trip from $815. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 4:00 PM
        12h 50m
        Nonstop
        PVG 7:50 PM
        Seattle - Shanghai | Tue, Sep 15 | Delta Air Lines
        PVG 5:30 PM
        11h 20m
        Nonstop
        SEA 1:50 PM
        Shanghai - Seattle | Thu, Sep 17 | Delta Air Lines
        $903 $975
        7% off
        7% off
        $975 $903
      • SEA 4:00 PM
        12h 50m
        Nonstop
        PVG 7:50 PM
        Seattle - Shanghai | Wed, Sep 16 | Delta Air Lines
        PVG 5:30 PM
        11h 20m
        Nonstop
        SEA 1:50 PM
        Shanghai - Seattle | Tue, Sep 22 | Delta Air Lines
        $906 $975
        7% off
        7% off
        $975 $906
      • SEA 12:10 AM
        18h 55m
        1 stop
        PVG 10:05 AM
        Seattle - Shanghai | Wed, Sep 30 | Asiana Airlines
        PVG 4:20 PM
        13h 55m
        1 stop
        SEA 3:15 PM
        Shanghai - Seattle | Tue, Oct 6 | Asiana Airlines
        $815 $975
        16% off
        16% off
        $975 $815
      • SEA 12:10 AM
        18h 55m
        1 stop
        PVG 10:05 AM
        Seattle - Shanghai | Mon, Sep 28 | Asiana Airlines
        PVG 1:05 AM
        29h 10m
        1 stop
        SEA 3:15 PM
        Shanghai - Seattle | Sun, Oct 4 | Asiana Airlines
        $815
        16% off
        $975 $815
      • SEA 12:10 AM
        18h 55m
        1 stop
        PVG 10:05 AM
        Seattle - Shanghai | Tue, Sep 29 | Asiana Airlines
        PVG 1:10 PM
        17h 5m
        1 stop
        SEA 3:15 PM
        Shanghai - Seattle | Sun, Oct 4 | Asiana Airlines
        $815
        16% off
        $975 $815
      • SEA 11:10 PM
        24h 20m
        1 stop
        PVG 2:30 PM
        Seattle - Shanghai | Sun, Sep 27 | Philippine Airlines
        PVG 4:00 PM
        19h 5m
        1 stop
        SEA 8:05 PM
        Shanghai - Seattle | Sun, Oct 4 | Philippine Airlines
        $837
        14% off
        $975 $837
      • SEA 12:50 PM
        16h 20m
        1 stop
        PVG 8:10 PM
        Seattle - Shanghai | Sun, Oct 18 | Korean Air
        PVG 11:10 AM
        14h 30m
        1 stop
        SEA 10:40 AM
        Shanghai - Seattle | Thu, Oct 22 | Korean Air
        $839
        14% off
        $975 $839
      • SEA 11:10 PM
        24h 20m
        1 stop
        PVG 2:30 PM
        Seattle - Shanghai | Sun, Sep 13 | Philippine Airlines
        PVG 4:00 PM
        19h 5m
        1 stop
        SEA 8:05 PM
        Shanghai - Seattle | Wed, Sep 16 | Philippine Airlines
        $841
        14% off
        $975 $841
      • SEA 11:55 AM
        21h 10m
        1 stop
        PVG 12:05 AM
        Seattle - Shanghai | Thu, Oct 22 | Hainan Airlines
        PVG 7:30 PM
        28h 50m
        1 stop
        SEA 9:20 AM
        Shanghai - Seattle | Mon, Oct 26 | Hainan Airlines
        $845
        13% off
        $975 $845
      • SEA 11:20 AM
        31h 15m
        1 stop
        SHA 9:35 AM
        Seattle - Shanghai | Tue, Oct 27 | Hainan Airlines
        SHA 11:50 AM
        36h 30m
        1 stop
        SEA 9:20 AM
        Shanghai - Seattle | Fri, Oct 30 | Hainan Airlines
        $845
        13% off
        $975 $845
      • SEA 12:00 PM
        17h 25m
        1 stop
        PVG 8:25 PM
        Seattle - Shanghai | Sun, Oct 25 | Korean Air
        PVG 2:00 PM
        16h 10m
        1 stop
        SEA 3:10 PM
        Shanghai - Seattle | Thu, Oct 29 | Korean Air
        $851
        13% off
        $975 $851
      • SEA 12:00 PM
        17h 25m
        1 stop
        PVG 8:25 PM
        Seattle - Shanghai | Tue, Oct 27 | Korean Air
        PVG 8:50 AM
        16h 15m
        1 stop
        SEA 10:05 AM
        Shanghai - Seattle | Thu, Oct 29 | Korean Air
        $851
        13% off
        $975 $851
      • SEA 1:00 PM
        17h 25m
        1 stop
        SHA 2:00 PM
        Seattle - Shanghai | Mon, Sep 14 | Normal Airline
        SHA 3:00 PM
        6h
        Nonstop
        SEA 4:00 PM
        Shanghai - Seattle | Wed, Sep 16 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        SEA 4:00 PM
        12h 50m
        Nonstop
        PVG 7:50 PM
        Seattle - Shanghai | Thu, Sep 17 | Delta Air Lines
        $490 $527
        7% off
        7% off
        $527 $490
      • SEA 4:00 PM
        12h 50m
        Nonstop
        PVG 7:50 PM
        Seattle - Shanghai | Wed, Sep 16 | Delta Air Lines
        $490 $527
        7% off
        7% off
        $527 $490
      • SEA 12:10 AM
        29h 45m
        1 stop
        PVG 8:55 PM
        Seattle - Shanghai | Sat, Oct 17 | Asiana Airlines
        $399 $527
        24% off
        24% off
        $527 $399
      • SEA 11:10 PM
        24h 20m
        1 stop
        PVG 2:30 PM
        Seattle - Shanghai | Wed, Sep 16 | Philippine Airlines
        $418
        21% off
        $527 $418
      • SEA 1:35 PM
        16h 20m
        1 stop
        PVG 8:55 PM
        Seattle - Shanghai | Thu, Oct 15 | Alaska Airlines
        $420
        20% off
        $527 $420
      • SEA 1:35 PM
        16h 20m
        1 stop
        PVG 8:55 PM
        Seattle - Shanghai | Wed, Oct 14 | Alaska Airlines
        $420
        20% off
        $527 $420
      • SEA 11:10 PM
        24h 20m
        1 stop
        PVG 2:30 PM
        Seattle - Shanghai | Sun, Sep 27 | Philippine Airlines
        $421
        20% off
        $527 $421
      • SEA 11:10 PM
        24h 20m
        1 stop
        PVG 2:30 PM
        Seattle - Shanghai | Sun, Sep 20 | Philippine Airlines
        $421
        20% off
        $527 $421
      • SEA 11:10 PM
        24h 20m
        1 stop
        PVG 2:30 PM
        Seattle - Shanghai | Wed, Sep 23 | Philippine Airlines
        $424
        20% off
        $527 $424
      • SEA 11:10 PM
        24h 20m
        1 stop
        PVG 2:30 PM
        Seattle - Shanghai | Tue, Sep 22 | Philippine Airlines
        $424
        20% off
        $527 $424
      • SEA 11:10 PM
        24h 20m
        1 stop
        PVG 2:30 PM
        Seattle - Shanghai | Sun, Sep 13 | Philippine Airlines
        $424
        20% off
        $527 $424
      • SEA 11:55 AM
        21h 15m
        1 stop
        PVG 12:10 AM
        Seattle - Shanghai | Thu, Oct 15 | Hainan Airlines
        $427
        19% off
        $527 $427
      • SEA 1:00 PM
        17h 25m
        1 stop
        SHA 2:00 PM
        Seattle - Shanghai | Mon, Sep 14 | Normal Airline
        Find more flights
        Find more flights

Flight.News
Flights from Seattle to Shanghai operate an average of 1 times per day over the past 7 days, with a 0.0% on-time departure rate and a 80.0% on-time arrival rate.

Which airlines are the most popular for Seattle to Shanghai flights?

The most popular airlines flying from Seattle to Shanghai are Delta Air Lines, Korean Air, and Alaska Airlines, among 10 carriers on this route. Asiana Airlines offers the lowest fares. Based on Trip.com's flight booking data from the previous 12 months.
Delta Air Lines logo Delta Air Lines
Korean Air logo Korean Air
Alaska Airlines logo Alaska Airlines
Philippine Airlines logo Philippine Airlines
Asiana Airlines logo Asiana Airlines
All Nippon Airways logo All Nippon Airways
China Airlines logo China Airlines
Air Canada logo Air Canada
Cathay Pacific logo Cathay Pacific
EVA Air logo EVA Air
Airlines are determined based on actual purchased flight tickets from Seattle to Shanghai according to previous 12 months data from Trip.com.

Flight Info | Seattle to Shanghai

The distance between Seattle and Shanghai is approximately 9,217.64 km. It takes around 12 hours 40 minutes on average to fly from Seattle to Shanghai. Based on Trip.com's data travel demand peaks in July. The off-season for travel is November.

Cheapest one-way flight price $399
Cheapest round-trip ticket price $815
Off-season for travel November
Peak season for travel July
Flight distance 9,217.64 km
Average flight time 12 hours 40 minutes
Popular airline Delta Air Lines
Frequency ～3/week
Flight statistics for the Seattle–Shanghai route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Seattle to Shanghai

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

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

Based on Trip.com’s data, the cheapest month for flights from Seattle to Shanghai is January, with an average price of $508; while the month with the highest flight price is usually June, with an average price of up to $936.

$936
$722
$508
$294
    Cheapest
  • $587
    Sep
  • $779
    Oct
  • $630
    Nov
  • $824
    Dec
  • $508
    Jan
  • $559
    Feb
  • $617
    Mar
  • $578
    Apr
  • $829
    May
  • $936
    Jun
  • $690
    Jul
  • $594
    Aug

What is the cheapest month for round-trip flights from Seattle to Shanghai?

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

According to historical data from Trip.com, the lowest prices for flights from Seattle to Shanghai are found during April, with an average price of $755. Conversely, the highest prices are found during October, with an average price of up to $2,178.

$2,178
$1,467
$755
$44
    Cheapest
  • $1,083
    Sep
  • $2,178
    Oct
  • $1,015
    Nov
  • $1,512
    Dec
  • $1,164
    Jan
  • $810
    Feb
  • $816
    Mar
  • $755
    Apr
  • $1,447
    May
  • $1,759
    Jun
  • $1,481
    Jul
  • $1,154
    Aug

When is the cheapest day to fly from Seattle to Shanghai during Columbus Day?

Data is based on the lowest one-way price from Seattle to Shanghai during Columbus Day on Trip.com in the past 3 days.

Columbus Day is scheduled for Oct 12. The cheapest flights from Seattle to Shanghai are available on Oct 13, with fares starting at $516.

$1,029
$773
$516
$260
    Cheapest
  • $643
    8
    Oct
  • $556
    9
  • $1,029
    10
  • $604
    11
  • $532
    12
  • $516
    13
  • $550
    14

Frequently Asked Questions

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

    Based on Trip.com data, Asiana Airlines offers one-way fares as low as $399 on Cheapest nonstop routes (e.g. SEA to PVG on Sat, Oct 17), while Asiana Airlines offers Cheapest nonstop round-trips from $815 departing on Wed, Sep 30 and returning on Tue, Oct 6.
  • 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.
  • It takes around 12 hours 40 minutes to fly from Seattle (SEA) to Shanghai (SHA).
  • 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.
  • Based on Trip.com data in the past 4 weeks, there is 6 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 (16:19)
  • 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 Sat, Oct 17, with one-way flights priced at just $399.
    · 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.
  • The cheapest months to fly from Seattle to Shanghai is November, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Seattle to Shanghai on September 20, 2026 with Philippine Airlines, with prices starting at $407.
  • You can arrive at any of the following airports in Shanghai: Shanghai Pudong International Airport (PVG), and Shanghai Hongqiao International Airport (SHA). Flights from Seattle-Tacoma International Airport to Shanghai Pudong International Airport (SEA-PVG) are by far the most popular option for this route.
  • The time difference between Shanghai and Seattle 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Seattle to Shanghai is $676. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Seattle to Shanghai is $1,130. The final price depends on the outbound and return dates, airline and fare conditions.
  • 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.

Explore More Popular Flights

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

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
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.
Cancellation/change due to a flight schedule change:
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.