£484 Cheap Flights from Sydney (SYD) to Seattle (SEA)

View £484 flight on Tue, 2 Jun 2026Opens in a new window

Popular airlines from Sydney Airport (SYD) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Sydney (SYD) to Seattle (SEA)

Prices were available within the past 7 days and start at £484 for one-way flights and £792 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, 8 Jun - Sat, 20 Jun
SYD
Sydney
SEA
Seattle
£792 Return, found 3 days ago
£792
Return
found 3 days ago
Select Air Canada flight, departing Mon, 8 Jun from Sydney to Seattle, returning Sat, 20 Jun, priced at £792 found 3 days ago
Air Canada
Mon, 8 Jun - Sat, 20 Jun
SYD
Sydney
SEA
Seattle
£797 Return, found 3 days ago
£797
Return
found 3 days ago
Select Air Canada flight, departing Mon, 8 Jun from Sydney to Seattle, returning Sat, 20 Jun, priced at £797 found 3 days ago
Asiana Airlines
Tue, 2 Feb - Tue, 16 Feb
SYD
Sydney
SEA
Seattle
£803 Return, found 5 days ago
£803
Return
found 5 days ago
Select Asiana Airlines flight, departing Tue, 2 Feb from Sydney to Seattle, returning Tue, 16 Feb, priced at £803 found 5 days ago
Asiana Airlines
Mon, 15 Feb - Tue, 23 Feb
SYD
Sydney
SEA
Seattle
£806 Return, found 2 days ago
£806
Return
found 2 days ago
Select Asiana Airlines flight, departing Mon, 15 Feb from Sydney to Seattle, returning Tue, 23 Feb, priced at £806 found 2 days ago
Air Canada
Mon, 8 Jun - Sat, 20 Jun
SYD
Sydney
SEA
Seattle
£809 Return, found 3 days ago
£809
Return
found 3 days ago
Select Air Canada flight, departing Mon, 8 Jun from Sydney to Seattle, returning Sat, 20 Jun, priced at £809 found 3 days ago
Qantas Airways
Mon, 8 Jun - Sat, 20 Jun
SYD
Sydney
SEA
Seattle
£821 Return, found 3 days ago
£821
Return
found 3 days ago
Select Qantas Airways flight, departing Mon, 8 Jun from Sydney to Seattle, returning Sat, 20 Jun, priced at £821 found 3 days ago
American Airlines
Wed, 3 Feb - Wed, 17 Feb
SYD
Sydney
SEA
Seattle
£905 Return, found 5 days ago
£905
Return
found 5 days ago
Select American Airlines flight, departing Wed, 3 Feb from Sydney to Seattle, returning Wed, 17 Feb, priced at £905 found 5 days ago
United
Wed, 3 Feb - Wed, 17 Feb
SYD
Sydney
SEA
Seattle
£918 Return, found 5 days ago
£918
Return
found 5 days ago
Select United flight, departing Wed, 3 Feb from Sydney to Seattle, returning Wed, 17 Feb, priced at £918 found 5 days ago
Delta
Wed, 3 Feb - Wed, 17 Feb
SYD
Sydney
SEA
Seattle
£918 Return, found 5 days ago
£918
Return
found 5 days ago
Select Delta flight, departing Wed, 3 Feb from Sydney to Seattle, returning Wed, 17 Feb, priced at £918 found 5 days ago
All Nippon Airways
Mon, 15 Feb - Tue, 23 Feb
SYD
Sydney
SEA
Seattle
£925 Return, found 2 days ago
£925
Return
found 2 days ago
Select All Nippon Airways flight, departing Mon, 15 Feb from Sydney to Seattle, returning Tue, 23 Feb, priced at £925 found 2 days ago

Frequently asked questions

How much does a flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
One-way flights typically cost between £1,078 and £6,221 and return flights often range between £1,078 and £6,221. 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 Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
How do I find cheap flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma 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 time to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 71 connecting flights per day from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Some common connection points include Auckland Intl. (AKL), Los Angeles Intl. (LAX), and Unknown (BNE).
What is the earliest flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Sydney, NSW (SYD-Kingsford Smith Intl.) (SYD) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA) typically departs at approximately 6:00 AM local time. This service is operated by Emirates and runs year-round. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
When flying from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), you'll typically find the most flights on a Saturday, with around 37 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Qantas, United Airlines, and Singapore Airlines. Flight schedules are fairly consistent throughout the week, with Saturday offering only slightly more flights than other days.
What are the most popular departure times for flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are between 9am and 12pm. This accounts for around 47% of total traffic. Many major carriers, including Air Canada, Delta Air Lines and United Airlines, offer flights during this window. Many travelers prefer these morning flights as they allow for a full day of travel and an evening arrival, giving you time to settle in.
How long does it take to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying from SYD to SEA with a connection usually takes about 21 hours 20 minutes, traveling roughly 7,750 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 Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for SYD to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma 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 Seattle from Kingsford Smith Intl. (SYD)?
If you're planning to travel to Seattle from Kingsford Smith Intl. (SYD), you can fly directly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Auckland Intl. (AKL), Los Angeles Intl. (LAX), Changi (SIN) before reaching Seattle. 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 Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma 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 Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma 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 Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Sydney, NSW (SYD-Kingsford Smith Intl.) to Seattle, WA (SEA-Seattle - Tacoma 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
Kingsford Smith Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air New Zealand, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, Emirates, Etihad Airways, Korean Air, Philippine Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, Turkish Airlines, United
Return price
£792
Distance
12399 km

Book with confidence

Compare flights from Sydney to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Sydney to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Kingsford Smith Intl. to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Kingsford Smith Intl. (SYD) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Sydney to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Kingsford Smith Intl. to Seattle - Tacoma Intl. start at just £792 and range up to £925.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Sydney and Seattle
  • booking your flight during June, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Sydney to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Kingsford Smith Intl. to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Sydney to Seattle easily and book with confidence

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