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Cheap flights from Australia to Seattle from $555

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
7 Sep — 14 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 8 August 2026.

Thu 6/809:20 -
1 stop26h 12m
Wed 19/819:20 -
1 stop19h 00m
Deal found 4/8$1,217
Thu 3/909:20 -
1 stop30h 22m
Mon 14/905:50 -
1 stop32h 30m
Deal found 4/8$1,226
Thu 10/920:45 -
1 stop17h 44m
Wed 23/907:20 -
1 stop18h 30m
Deal found 4/8$1,227
Mon 24/809:20 -
1 stop17h 45m
Tue 8/905:50 -
1 stop32h 30m
Deal found 3/8$1,243
Wed 16/909:20 -
1 stop26h 12m
Wed 23/915:00 -
2 stops37h 40m
Deal found 4/8$1,253
Thu 10/907:00 -
2 stops32h 47m
Wed 23/919:15 -
2 stops33h 10m
Deal found 4/8$1,264
Wed 16/909:10 -
1 stop18h 46m
Wed 23/915:58 -
1 stop22h 07m
Deal found 4/8$1,271
Thu 6/809:10 -
1 stop31h 49m
Wed 19/811:48 -
2 stops26h 17m
Deal found 4/8$1,284
Thu 3/906:00 -
2 stops21h 05m
Tue 15/915:00 -
2 stops27h 05m
Deal found 5/8$1,298
Fri 7/809:30 -
1 stop29h 29m
Thu 20/819:35 -
1 stop19h 40m
Deal found 5/8$1,314
Thu 6/810:55 -
1 stop18h 39m
Wed 19/818:52 -
1 stop19h 38m
Deal found 3/8$1,315
Fri 14/809:30 -
1 stop19h 04m
Wed 19/818:15 -
2 stops68h 15m
Deal found 7/8$1,319

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 8 August 2026.

Round-trip from

$1,226

One-way from

$555

Popular in

January

Cheapest in

September

Average price

$1,403
Air Canada
  • Air Canada
  • 3/9-14/9
  • 2 total stops
  • 62h 52m 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 8 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

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Fri 14/8

09:30-11:34

1 stop19h 04m

Seattle/Tacoma Intl

Wed 19/8

18:15-07:30

2 stops68h 15m

$1,319

MelbourneSeattle

AVV Melbourne Avalon - SEA Seattle/Tacoma Intl

AVVSEA

Melbourne Avalon

Mon 2/11

06:00-09:27

2 stops22h 27m

Seattle/Tacoma Intl

Mon 23/11

19:05-14:05

2 stops24h 00m

$1,338
Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 27/8

20:45-23:53

1 stop20h 08m

Seattle/Tacoma Intl

Thu 3/9

07:20-18:50

1 stop18h 30m

$1,384

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 13/8

09:30-11:34

1 stop19h 04m

Seattle/Tacoma Intl

Wed 19/8

23:59-07:00

2 stops38h 01m

$1,433

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

$1,436

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Wed 9/9

10:00-22:47

1 stop29h 47m

Seattle/Tacoma Intl

Wed 16/9

19:15-07:05

1 stop18h 50m

$1,478

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Mon 2/11

12:45-21:19

2 stops27h 34m

Seattle/Tacoma Intl

Mon 23/11

12:20-09:30

1 stop26h 10m

$1,485

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 31/8

06:30-10:05

2 stops20h 35m

Seattle/Tacoma Intl

Mon 7/9

05:50-10:40

2 stops35h 50m

$1,495

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 10/9

09:20-14:22

1 stop22h 02m

Seattle/Tacoma Intl

Mon 14/9

05:50-07:20

1 stop32h 30m

$1,502

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Mon 2/11

12:00-20:27

1 stop27h 27m

Seattle/Tacoma Intl

Mon 23/11

17:57-09:50

1 stop20h 53m

$1,532

Flights are sorted by cheapest return flights first.

Deals found on 5/8

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 $1,243). Flying from Australia to Seattle in December is currently the most expensive (average of $1,590). 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 8 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

Comfort

7.5

Overall

7.6

Entertainment

6.4

Boarding

7.8

Crew

8.2

Food

6.4

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

Comfort

7.5

Overall

7.6

Entertainment

6.4

Boarding

7.8

Crew

8.2

Food

6.4

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
1,079 reviews
Virgin Australia
7.6
Good
470 reviews
Check prices

Comfort

7.5

Overall

7.6

Entertainment

6.4

Boarding

7.8

Crew

8.2

Food

6.4

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
10,085 reviews
Virgin Australia
7.6
Good
470 reviews
Check prices

Comfort

7.5

Overall

7.6

Entertainment

6.4

Boarding

7.8

Crew

8.2

Food

6.4

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
11,885 reviews
Virgin Australia
7.6
Good
470 reviews
Check prices

Comfort

7.5

Overall

7.6

Entertainment

6.4

Boarding

7.8

Crew

8.2

Food

6.4

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
11,450 reviews
Virgin Australia
7.6
Good
470 reviews
Check prices

Comfort

7.5

Overall

7.6

Entertainment

6.4

Boarding

7.8

Crew

8.2

Food

6.4

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, Air Canada, and Delta fly from Australia to Seattle in about 19h 04m. The time it takes to get you to your destination can typically vary by up to 10h 43m. Australia and Seattle are separated by a distance of 13164 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 $603. 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 Sydney Kingsford Smith - Seattle/Tacoma Intl. You may also consider Melbourne - 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 $1,243). Flying from Australia to Seattle in December is currently the most expensive (average of $1,590). 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 8 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 8 August 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$768Average$1,371FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$825Average$1,445FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$947Average$1,401FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$951Average$1,339FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$960Average$1,495FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Hawaiian AirlinesCheapest$1,042Average$1,835FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Qantas AirwaysCheapest$1,068Average$1,704FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Japan AirlinesCheapest$1,282Average$2,098FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
ANACheapest$1,300Average$1,566FlexibilityNo cancel feeOn-time80%
Search ANA flights
Air New ZealandCheapest$1,391Average$1,641FlexibilityNo 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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