£364 Cheap Flights from Sydney (SYD) to Seattle (SEA)

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 £364 for one-way flights and £629 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Air Canada
Air Canada
Air Canada
Air Canada
Air Canada
Alaska Airlines
Hawaiian Airlines
Qantas Airways
Delta

Find the cheapest month to fly from Sydney (SYD) to Seattle (SEA)

August is typically the cheapest month to fly

From £582 - £883 per traveller.

Graph displaying average flight prices per month

Flight from Sydney to Seattle route 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, Delta, Emirates, Hawaiian Airlines, Korean Air, Qantas Airways, Qatar Airways, Turkish Airlines, United
Return price
£628
Distance
12399 km

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 £629 and range up to £758.  

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 August, 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.  

Frequently asked questions

How much is a flight from Kingsford Smith Intl. Airport (SYD) to Sea-Tac Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey from SYD to Sea-Tac Airport was £629. Cheap fares don't hang around forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sydney Airport to SEA?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from SYD to Seattle - Tacoma Intl. Airport (SEA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Kingsford Smith Intl. Airport (SYD) to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SYD to SEA?
You'll have 12,500 kilometres to cover on the long-haul Sydney to SeaTac route. Dress in layers of comfortable clothes and consider taking earplugs and a sleep mask.
Which airlines fly direct from Mascot Airport to Sea-Tac Airport?
Unfortunately, there are no airlines that fly directly between Kingsford Smith Intl. Airport (SYD) and SEA. You'll have to book a flight with at least one stop.
Are SYD to SEA flight tickets cheaper when they're purchased at the last minute?
It is possible to score amazing last-minute deals from Sydney Airport to SEA, but it's also possible to miss out entirely! As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you see a good bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can rest easy knowing you're always seeing the latest offers.

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Seattle Paine Field Intl. Airport

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