NZ$1,014 Cheap Flights Seattle to Sydney (SEA-SYD)

View NZ$1,014 flight on Sun, 2 Aug 2026Opens in a new window

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

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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.

American Airlines
Sun, 2 Aug - Wed, 19 Aug
SEA
Seattle
SYD
Sydney
NZ$1,659 Return, found 3 days ago
NZ$1,659
Return
found 3 days ago
Select American Airlines flight, departing Sun, 2 Aug from Seattle to Sydney, returning Wed, 19 Aug, priced at NZ$1,659 found 3 days ago
Delta
Sun, 31 May - Sun, 7 June
SEA
Seattle
SYD
Sydney
NZ$1,848 Return, found 3 hours ago
NZ$1,848
Return
found 3 hours ago
Select Delta flight, departing Sun, 31 May from Seattle to Sydney, returning Sun, 7 June, priced at NZ$1,848 found 3 hours ago
Delta
Sun, 26 Apr - Sun, 10 May
SEA
Seattle
SYD
Sydney
NZ$1,852 Return, found 10 hours ago
NZ$1,852
Return
found 10 hours ago
Select Delta flight, departing Sun, 26 Apr from Seattle to Sydney, returning Sun, 10 May, priced at NZ$1,852 found 10 hours ago
Alaska Airlines
Sun, 31 May - Sun, 7 June
SEA
Seattle
SYD
Sydney
NZ$1,890 Return, found 3 hours ago
NZ$1,890
Return
found 3 hours ago
Select Alaska Airlines flight, departing Sun, 31 May from Seattle to Sydney, returning Sun, 7 June, priced at NZ$1,890 found 3 hours ago
Alaska Airlines
Sun, 31 May - Sun, 7 June
SEA
Seattle
SYD
Sydney
NZ$1,910 Return, found 3 hours ago
NZ$1,910
Return
found 3 hours ago
Select Alaska Airlines flight, departing Sun, 31 May from Seattle to Sydney, returning Sun, 7 June, priced at NZ$1,910 found 3 hours ago
Alaska Airlines
Sun, 26 Apr - Sun, 10 May
SEA
Seattle
SYD
Sydney
NZ$1,914 Return, found 10 hours ago
NZ$1,914
Return
found 10 hours ago
Select Alaska Airlines flight, departing Sun, 26 Apr from Seattle to Sydney, returning Sun, 10 May, priced at NZ$1,914 found 10 hours ago
Alaska Airlines
Sun, 31 May - Sun, 7 June
SEA
Seattle
SYD
Sydney
NZ$1,930 Return, found 3 hours ago
NZ$1,930
Return
found 3 hours ago
Select Alaska Airlines flight, departing Sun, 31 May from Seattle to Sydney, returning Sun, 7 June, priced at NZ$1,930 found 3 hours ago
Air Canada
Sun, 2 Aug - Wed, 19 Aug
SEA
Seattle
SYD
Sydney
NZ$2,015 Return, found 3 days ago
NZ$2,015
Return
found 3 days ago
Select Air Canada flight, departing Sun, 2 Aug from Seattle to Sydney, returning Wed, 19 Aug, priced at NZ$2,015 found 3 days ago
United
Sun, 31 May - Sun, 7 June
SEA
Seattle
SYD
Sydney
NZ$2,055 Return, found 3 hours ago
NZ$2,055
Return
found 3 hours ago
Select United flight, departing Sun, 31 May from Seattle to Sydney, returning Sun, 7 June, priced at NZ$2,055 found 3 hours ago
Qantas Airways
Fri, 29 May - Fri, 5 June
SEA
Seattle
SYD
Sydney
NZ$2,312 Return, found 2 days ago
NZ$2,312
Return
found 2 days ago
Select Qantas Airways flight, departing Fri, 29 May from Seattle to Sydney, returning Fri, 5 June, priced at NZ$2,312 found 2 days ago

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$1,659. 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.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, Delta, Emirates, Qantas Airways, Singapore Airlines, United
Return price
NZ$1,658
Distance
12399 km

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