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Cheap flights from Australia to Seattle from $586

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
11 Sep — 18 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Seattle

Enter your travel dates to find the best prices.

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 12 August 2026.

Thu 22/1014:15 -
2 stops23h 35m
Wed 11/1114:59 -
2 stops26h 36m
Deal found 9/8$1,255
Wed 4/1114:00 -
2 stops23h 26m
Wed 18/1111:06 -
1 stop24h 19m
Deal found 11/8$1,305
Fri 14/809:30 -
1 stop19h 04m
Wed 19/818:15 -
2 stops68h 15m
Deal found 7/8$1,317
Thu 13/810:55 -
2 stops23h 47m
Wed 26/812:44 -
2 stops26h 31m
Deal found 9/8$1,320
Thu 13/810:55 -
1 stop18h 25m
Thu 27/818:15 -
2 stops44h 15m
Deal found 9/8$1,323
Thu 22/1014:15 -
2 stops23h 35m
Thu 12/1108:03 -
2 stops33h 32m
Deal found 9/8$1,323
Mon 17/809:10 -
1 stop31h 11m
Sun 30/811:40 -
1 stop26h 25m
Deal found 7/8$1,337
Tue 20/1014:15 -
2 stops22h 11m
Tue 10/1111:06 -
1 stop24h 19m
Deal found 9/8$1,342
Tue 11/809:30 -
1 stop19h 04m
Tue 8/907:11 -
1 stop30h 44m
Deal found 8/8$1,363
Tue 11/817:50 -
1 stop22h 31m
Thu 10/916:59 -
1 stop21h 06m
Deal found 8/8$1,375
Mon 2/1110:10 -
1 stop29h 17m
Mon 23/1110:12 -
1 stop26h 48m
Deal found 11/8$1,465
Thu 13/810:15 -
1 stop16h 50m
Wed 26/815:00 -
1 stop23h 05m
Deal found 10/8$1,487

Find flight deals from Australia to Seattle

Keep the following information in mind while searching for Australia to Seattle flight deals. Data was last updated 12 August 2026.

Round-trip from

$1,255

One-way from

$586

Popular in

January

Cheapest in

September

Average price

$1,401
22/10-11/11
  • 22/10-11/11
  • 4 total stops
  • 50h 11m total
  • Australia to Seattle
Search Deals
5/10
  • 5/10
  • 2 total stops
  • 22h 21m total
  • Australia to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($121 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 12 August 2026.
Use the filters below to find and compare flights from Australia to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 27/8

09:30-17:42

2 stops25h 12m

Seattle/Tacoma Intl

Thu 3/9

18:52-07:00

1 stop19h 08m

$1,438

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Wed 9/9

10:00-22:05

1 stop29h 05m

Seattle/Tacoma Intl

Tue 15/9

21:35-07:50

1 stop41h 15m

$1,534

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 10/9

09:20-10:05

1 stop17h 45m

Seattle/Tacoma Intl

Mon 14/9

10:50-07:20

1 stop27h 30m

$1,534
Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 25/1

10:40-10:35

1 stop18h 55m

Seattle/Tacoma Intl

Mon 22/2

17:55-08:30

1 stop19h 35m

$1,548

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/10

06:00-09:52

2 stops21h 52m

Seattle/Tacoma Intl

Tue 10/11

19:05-14:40

2 stops24h 35m

$1,579

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Sun 8/11

12:00-20:03

1 stop27h 03m

Seattle/Tacoma Intl

Thu 26/11

07:30-05:00

1 stop26h 30m

$1,591

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Wed 9/9

10:00-22:05

1 stop29h 05m

Seattle/Tacoma Intl

Thu 17/9

19:59-07:50

2 stops42h 51m

$1,602

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Sun 6/9

10:00-14:50

1 stop21h 50m

Seattle/Tacoma Intl

Sun 13/9

13:24-07:50

2 stops49h 26m

$1,604

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Mon 21/9

10:55-18:29

1 stop24h 34m

Seattle/Tacoma Intl

Wed 30/9

13:19-08:15

1 stop25h 56m

$1,673

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Sun 8/11

12:45-12:20

1 stop18h 35m

Seattle/Tacoma Intl

Wed 25/11

16:39-09:30

1 stop21h 51m

$1,673

Flights are sorted by cheapest return flights first.

Deals found on 7/8

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 $1,241). Flying from Australia to Seattle in December is currently the most expensive (average of $1,588). 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.

How far ahead should I book a flight from Australia to Seattle?

To ensure you get the cheapest price possible for a flight from Australia to Seattle, you should look to book at least 8 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 12 August 2026.
Read through reviews of airlines operating flights from Australia to Seattle, such as Virgin Australia,Qantas Airways, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Australia
7.6
Good
470 reviews
Check prices

Overall

7.6

Boarding

7.8

Crew

8.2

Entertainment

6.4

Food

6.4

Comfort

7.5

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
Virgin Australia
7.6
Good
470 reviews
Virgin Australia
7.6
Good
470 reviews
Check prices

Overall

7.6

Boarding

7.8

Crew

8.2

Entertainment

6.4

Food

6.4

Comfort

7.5

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
Qantas Airways
7.5
Good
1,081 reviews
Virgin Australia
7.6
Good
470 reviews
Check prices

Overall

7.6

Boarding

7.8

Crew

8.2

Entertainment

6.4

Food

6.4

Comfort

7.5

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
United Airlines
7.4
Good
10,110 reviews
Virgin Australia
7.6
Good
470 reviews
Check prices

Overall

7.6

Boarding

7.8

Crew

8.2

Entertainment

6.4

Food

6.4

Comfort

7.5

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
American Airlines
7.1
Good
11,910 reviews
Virgin Australia
7.6
Good
470 reviews
Check prices

Overall

7.6

Boarding

7.8

Crew

8.2

Entertainment

6.4

Food

6.4

Comfort

7.5

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
Air Canada
7.1
Good
11,463 reviews
Virgin Australia
7.6
Good
470 reviews
Check prices

Overall

7.6

Boarding

7.8

Crew

8.2

Entertainment

6.4

Food

6.4

Comfort

7.5

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now

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.

  • How long is the flight from Australia to Seattle?

    Airlines like United Airlines, Delta, and Air Canada fly from Australia to Seattle in about 17h 45m. The time it takes to get you to your destination can typically vary by up to 11h 20m. Australia and Seattle are separated by a distance of 12463 km. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $602. However, be on the lookout for offers from United Airlines and Hawaiian 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 Brisbane - Seattle/Tacoma Intl. You may also consider Melbourne - Seattle/Tacoma Intl or Sydney Kingsford Smith - 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 $1,241). Flying from Australia to Seattle in December is currently the most expensive (average of $1,588). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Ocean Shores
Tukwila

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Fly from Australia to Seattle on these airlines

Choose from the following airlines for your flight from Australia to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 12 August 2026.
United Airlines flights from Australia to Seattle/Tacoma Intl

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 12 August 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$767Average$1,369FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$823Average$1,443FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$933Average$1,405FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$950Average$1,348FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$958Average$1,498FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Hawaiian AirlinesCheapest$1,041Average$1,833FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Qantas AirwaysCheapest$1,066Average$1,655FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Japan AirlinesCheapest$1,281Average$2,095FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
ANACheapest$1,298Average$1,564FlexibilityNo cancel feeOn-time80%
Search ANA flights
Air New ZealandCheapest$1,389Average$1,638FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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