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Cheap Flights from Seattle to Sydney

  • Seattle Sydney

    Wed, Mar 11 - Wed, Mar 18

    From US$789.85
  • Seattle Sydney

    Mon, Mar 9 - Mon, Mar 16

    From US$790.84
  • Seattle Sydney

    Wed, Mar 11 - Wed, Mar 18

    From US$792.84
  • Seattle Sydney

    Wed, Mar 11 - Wed, Mar 18

    From US$794.68
  • Seattle Sydney

    Wed, Mar 11 - Wed, Mar 18

    From US$822.97
  • Seattle Sydney

    Wed, Mar 11 - Wed, Mar 18

    From US$882.54

Prices shown are for 1 adult ticket including taxes & fees.(As ticket fares can change frequently, these advertised prices are for reference only. The actual prices will be shown at time of booking.)

Seattle to Sydney Flight Information

Below are some common questions asked about this flight route:

When can I book the cheapest flight from Seattle to Sydney?

Airlines adjust prices for plane tickets based on the day and time that you book your flight. After analyzing data from all airlines, we have discovered that the best days to book flights from Seattle to Sydney are Tuesdays, Wednesdays, and Saturdays.

What is the most popular airline for non-stop flights from Seattle to Sydney?

provides of the non-stop flights between Seattle and Sydney.

How many airports are there in Sydney?

There are 1 airports in Sydney - Kingsford Smith Airport.

Airports at destination:
Flight route:
Price starting from:

Seattle to Sydney Flight Schedule

The schedule for flights from Seattle to Sydney could not be found. To find all routes between Seattle and Sydney, please use the search box above.

Seattle to Kingsford Smith Airport (SYD)

08:55, Mar 11 - 21:40, Mar 18
HA | Hawaiian Airlines
40h 50m
SEA - SYD
2 stop
US$790
Round-trip from
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17:40, Mar 9 - 10:25, Mar 16
AS | Alaska Airlines
20h 30m
SEA - SYD
2 stop
US$791
Round-trip from
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18:35, Mar 11 - 11:15, Mar 18
AA | American Airlines
19h 55m
SEA - SYD
2 stop
US$793
Round-trip from
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15:57, Mar 11 - 10:10, Mar 18
QF | Qantas Airways
22h 33m
SEA - SYD
2 stop
US$823
Round-trip from
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19:33, Mar 13 - 13:00, Mar 16
UA | United Airlines
18h 32m
SEA - SYD
2 stop
US$863
Round-trip from
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Prices shown are for 1 adult ticket including taxes & fees.(As ticket fares can change frequently, these advertised prices are for reference only. The actual prices will be shown at time of booking.)

Roundtrip vs One-Way Flights from Seattle to Sydney

There is usually no major price difference between buying a roundtrip flight versus a one-way flight. Increased flexibility is the main benefit when it comes to buying a one-way flight from Seattle to Sydney. However, booking a roundtrip flight is a simpler process. You can compare roundtrip and one-way flights by using our flight comparison tool.

Travel from Seattle to Sydney

Sydney attracts thousands of visitors every year for both business and pleasure. Planning a trip from Seattle to Sydney is easy when you use Trip.com to help you make travel arrangements. With Trip.com, you can search for available flights and hotel rooms, and then make your booking quickly and easily online.

A Trip to Remember

Make your journey from Seattle to Sydney a trip to remember when you use Trip.com to review city attractions before you arrive. With a preview of what's available at your destination, you can make any necessary reservations in advance for the best travel experience possible.