NZ$702 Cheap Flights Seattle to Sydney (SEA-SYD)

View NZ$702 flight on Thu, 2 Apr 2026Opens in a new window

Popular airlines from Seattle to Sydney, NSW (SYD-Kingsford Smith Intl.)

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, 2 Feb - Mon, 16 Feb
SEA
Seattle
SYD
Sydney
NZ$1,882 Return, found 6 days ago
NZ$1,882
Return
found 6 days ago
Select Air Canada flight, departing Mon, 2 Feb from Seattle to Sydney, returning Mon, 16 Feb, priced at NZ$1,882 found 6 days ago
Air Canada
Wed, 11 Feb - Wed, 18 Feb
SEA
Seattle
SYD
Sydney
NZ$1,890 Return, found 1 day ago
NZ$1,890
Return
found 1 day ago
Select Air Canada flight, departing Wed, 11 Feb from Seattle to Sydney, returning Wed, 18 Feb, priced at NZ$1,890 found 1 day ago
Alaska Airlines
Fri, 6 Feb - Fri, 6 Mar
SEA
Seattle
SYD
Sydney
NZ$1,904 Return, found 6 days ago
NZ$1,904
Return
found 6 days ago
Select Alaska Airlines flight, departing Fri, 6 Feb from Seattle to Sydney, returning Fri, 6 Mar, priced at NZ$1,904 found 6 days ago
Air Canada
Mon, 2 Feb - Mon, 16 Feb
SEA
Seattle
SYD
Sydney
NZ$1,918 Return, found 6 days ago
NZ$1,918
Return
found 6 days ago
Select Air Canada flight, departing Mon, 2 Feb from Seattle to Sydney, returning Mon, 16 Feb, priced at NZ$1,918 found 6 days ago
American Airlines
Mon, 2 Feb - Mon, 16 Feb
SEA
Seattle
SYD
Sydney
NZ$1,920 Return, found 6 days ago
NZ$1,920
Return
found 6 days ago
Select American Airlines flight, departing Mon, 2 Feb from Seattle to Sydney, returning Mon, 16 Feb, priced at NZ$1,920 found 6 days ago
Alaska Airlines
Mon, 2 Feb - Mon, 16 Feb
SEA
Seattle
SYD
Sydney
NZ$1,922 Return, found 6 days ago
NZ$1,922
Return
found 6 days ago
Select Alaska Airlines flight, departing Mon, 2 Feb from Seattle to Sydney, returning Mon, 16 Feb, priced at NZ$1,922 found 6 days ago
Qantas Airways
Mon, 2 Feb - Mon, 16 Feb
SEA
Seattle
SYD
Sydney
NZ$1,938 Return, found 6 days ago
NZ$1,938
Return
found 6 days ago
Select Qantas Airways flight, departing Mon, 2 Feb from Seattle to Sydney, returning Mon, 16 Feb, priced at NZ$1,938 found 6 days ago
Qantas Airways
Mon, 2 Feb - Mon, 16 Feb
SEA
Seattle
SYD
Sydney
NZ$1,938 Return, found 6 days ago
NZ$1,938
Return
found 6 days ago
Select Qantas Airways flight, departing Mon, 2 Feb from Seattle to Sydney, returning Mon, 16 Feb, priced at NZ$1,938 found 6 days ago
Qantas Airways
Mon, 2 Feb - Mon, 16 Feb
SEA
Seattle
SYD
Sydney
NZ$1,939 Return, found 6 days ago
NZ$1,939
Return
found 6 days ago
Select Qantas Airways flight, departing Mon, 2 Feb from Seattle to Sydney, returning Mon, 16 Feb, priced at NZ$1,939 found 6 days ago
United
Mon, 2 Feb - Mon, 16 Feb
SEA
Seattle
SYD
Sydney
NZ$1,983 Return, found 6 days ago
NZ$1,983
Return
found 6 days ago
Select United flight, departing Mon, 2 Feb from Seattle to Sydney, returning Mon, 16 Feb, priced at NZ$1,983 found 6 days ago
Flight from Seattle to Sydney route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, Alaska Airlines, American Airlines, Cathay Pacific, Delta, Emirates, Fiji Airways, Philippine Airlines, Qantas Airways, Qatar Airways, Turkish Airlines, United
Return price
NZ$1,882
Distance
12399 km

Perfect flights from Seattle to Sydney

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to Sydney. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Seattle - Tacoma Intl. to Kingsford Smith Intl. ticket options cater to your travel preferences, with incredible one-way fares from NZ$702 and roundtrip prices from NZ$1,882. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Kingsford Smith Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Sydney.

Frequently asked questions

How much is a flight from SEA to SYD?
Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip flights between Seattle - Tacoma Intl. Airport (SEA) and Kingsford Smith Intl. Airport (SYD) start from NZ$1,882. Make your booking ASAP to secure the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Sydney Airport?
This varies from airline to airline, as each has its own terms and conditions. Head to the Customer Service Portal, where there are easy-to-follow instructions on how to cancel your flight online.
How do I find cheap flights from Sea-Tac Airport to Mascot Airport 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 Seattle - Tacoma Intl. Airport (SEA) to SYD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to Kingsford Smith Intl. Airport (SYD)?
The distance is around 12 500 kilometres. Eye mask? Check. Noise-cancelling headphones? Double check. You'd be wise to pack all the essentials for this long-haul SeaTac to Sydney flight.
Which airlines fly direct from SEA to Mascot Airport?
Unfortunately, there are no airlines that directly fly between Seattle - Tacoma Intl. Airport (SEA) and SYD. You'll have to book a flight with at least one stop.
Are SEA to SYD flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Seattle - Tacoma Intl. Airport (SEA) to SYD at the last minute could be your ticket to an awesome deal. However, it might cost you a whole lot more! If you'd prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains as far ahead as 12 months in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated all the time on Expedia.

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