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Cheap flights from Australia to Seattle from $642

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
8 Jul — 15 Jul1
1 adult

Cheap flight deals from Australia to Seattle

Keep the following information in mind while searching for Australia to Seattle flight deals. Data was last updated 3 July 2025.

Round-trip from

$1,231

One-way from

$642

Popular in

December

Cheapest in

February

Average price

$1,965
Air Canada
  • Air Canada
  • 31/7-18/8
  • 2 total stops
  • 45h 21m total
  • Australia to Seattle
Search Deals
27/8
  • 27/8
  • 2 total stops
  • 31h 55m total
  • Australia to Seattle
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($236 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($65 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Australia to Seattle

Cheapest flights from Australia to Seattle
Explore the most affordable flight options available from Australia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.

Thu 31/709:20SYD - SEA
1 stop17h 01mAir Canada
Mon 18/810:00SEA - SYD
1 stop28h 20mAir Canada
Deal found 1/7$1,231
Mon 6/1010:20SYD - SEA
1 stop21h 56mMultiple Airlines
Fri 31/1020:00SEA - SYD
2 stops23h 55mMultiple Airlines
Deal found 30/6$1,253
Tue 12/806:00MEL - SEA
2 stops29h 36mMultiple Airlines
Sun 31/819:15SEA - MEL
2 stops23h 10mMultiple Airlines
Deal found 30/6$1,273
Tue 12/806:00MEL - SEA
2 stops25h 16mAir Canada
Sun 31/814:55SEA - MEL
2 stops29h 25mAir Canada
Deal found 1/7$1,279
Mon 28/717:45SYD - SEA
1 stop21h 32mQantas Airways
Mon 15/917:59SEA - SYD
1 stop20h 06mQantas Airways
Deal found 1/7$1,296
Sun 27/709:10SYD - SEA
1 stop21h 50mAmerican Airlines
Mon 15/915:23SEA - SYD
1 stop22h 42mAmerican Airlines
Deal found 2/7$1,305
Sun 27/709:25SYD - SEA
1 stop24h 26mDelta
Mon 15/905:30SEA - SYD
2 stops32h 05mDelta
Deal found 1/7$1,320
Fri 12/909:30SYD - SEA
1 stop21h 00mUnited Airlines
Fri 26/912:43SEA - SYD
2 stops25h 17mUnited Airlines
Deal found 1/7$1,325
Sun 20/710:00BNE - SEA
1 stop20h 06mAir Canada
Wed 13/819:15SEA - BNE
1 stop18h 50mAir Canada
Deal found 1/7$1,355
Sun 20/710:00BNE - SEA
1 stop20h 06mMultiple Airlines
Wed 13/814:50SEA - BNE
2 stops23h 15mMultiple Airlines
Deal found 1/7$1,363
Wed 13/810:55MEL - SEA
2 stops27h 28mUnited Airlines
Thu 28/814:29SEA - MEL
1 stop24h 46mUnited Airlines
Deal found 30/6$1,371
Fri 1/809:45MEL - SEA
1 stop21h 15mAmerican Airlines
Sat 27/915:23SEA - MEL
1 stop22h 22mAmerican Airlines
Deal found 2/7$1,378

Cheapflights Fare Finder

Customise your flight search to find flights from Australia to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 3 July 2025.
Use the filters below to find and compare flights from Australia to Seattle that are best for you.

Fly from

Australia

Fly to

Seattle

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 31/7

09:20-09:21

1 stop17h 01m

Seattle/Tacoma Intl

Mon 18/8

10:00-07:20

1 stop28h 20m

$1,231

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 6/10

10:20-14:16

1 stop21h 56m

Seattle/Tacoma Intl

Fri 31/10

20:00-13:55

2 stops23h 55m

$1,253

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 12/8

06:00-18:36

2 stops29h 36m

Seattle/Tacoma Intl

Sun 31/8

19:15-11:25

2 stops23h 10m

$1,273

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 12/8

06:00-14:16

2 stops25h 16m

Seattle/Tacoma Intl

Sun 31/8

14:55-13:20

2 stops29h 25m

$1,279

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 28/7

17:45-22:17

1 stop21h 32m

Seattle/Tacoma Intl

Mon 15/9

17:59-07:05

1 stop20h 06m

$1,296

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 27/7

09:10-14:00

1 stop21h 50m

Seattle/Tacoma Intl

Mon 15/9

15:23-07:05

1 stop22h 42m

$1,305

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 27/7

09:25-16:51

1 stop24h 26m

Seattle/Tacoma Intl

Mon 15/9

05:30-06:35

2 stops32h 05m

$1,320

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 12/9

09:30-13:30

1 stop21h 00m

Seattle/Tacoma Intl

Fri 26/9

12:43-07:00

2 stops25h 17m

$1,325

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sun 20/7

10:00-13:06

1 stop20h 06m

Seattle/Tacoma Intl

Wed 13/8

19:15-07:05

1 stop18h 50m

$1,355

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sun 20/7

10:00-13:06

1 stop20h 06m

Seattle/Tacoma Intl

Wed 13/8

14:50-07:05

2 stops23h 15m

$1,363

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 60 results
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Best time to book a flight from Australia to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Australia with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Australia to Seattle

What is the cheapest month to book a flight from Australia to Seattle?

Currently, March is the cheapest month in which you can book a flight from Australia to Seattle (average of $875). Flying from Australia to Seattle in December is currently the most expensive (average of $1,404). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AU to SEA?

Find hourly flight availability from Australia to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 July 2025.

When flying from Australia to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 3 July 2025.
Read through reviews of airlines operating flights from Australia to Seattle, such as Air Tahiti Nui, EVA Air, andANA. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Comfort

8.1

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very Good
64 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Comfort

8.1

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
EVA Air
8.4
Very Good
1,215 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Comfort

8.1

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
ANA
8.4
Very Good
892 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Comfort

8.1

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Japan Airlines
8.3
Very Good
1,505 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Comfort

8.1

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
China Airlines
8.3
Very Good
747 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Comfort

8.1

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Related info for your journey

Find useful and relevant information for your journey from Australia to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Australia?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Australia to Seattle. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.

  • What are the cheapest airlines to fly from Australia to Seattle one-way?

    The cheapest airline one-way is Qantas Airways, with whom users have recently found tickets for as low as $753. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from Australia to Seattle for a low price.

  • What are the most popular routes from Australia to Seattle?

    The most popular route from Australia to Seattle is Melbourne - Seattle/Tacoma Intl. You may also consider Sydney Kingsford Smith - Seattle/Tacoma Intl or Brisbane - Seattle/Tacoma Intl.

  • Can I find deals for flights from Australia to Seattle that include hotel bookings?

    Yes. In addition to deals on Australia to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Australia to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to Seattle.

  • Can I find deals for business class flights from Australia to Seattle?

    Yes. Cheapflights offers flight deals from Australia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Australia to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Australia to Seattle (average of $875). Flying from Australia to Seattle in December is currently the most expensive (average of $1,404). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Australia?

Book flights to Australia if you plan to visit one of these locations
Leavenworth

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Australia to Seattle

Discover the top 10 airlines that operate flights from Australia to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$349Average$2,062FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Qantas AirwaysCheapest$1,207Average$1,919FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$1,208Average$1,874FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Asiana AirlinesCheapest$1,229Average$1,562FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Air CanadaCheapest$1,230Average$1,779FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Philippine AirlinesCheapest$1,255Average$1,513FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
DeltaCheapest$1,308Average$2,152FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
EVA AirCheapest$1,311Average$1,506FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Air New ZealandCheapest$1,337Average$1,485FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Hawaiian AirlinesCheapest$1,351Average$1,858FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Australia to Seattle?

Cheapflights makes it easy to find Australia to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Australia to Seattle?

Cheapflights helps you find that perfect flight to Seattle from Australia by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Australia to Seattle with no change fees?

Yes, we can. To see specific flights from Australia to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Australia to Seattle become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Australia today and book when prices fit your budget.

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