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Cheap flights from Australia to Seattle from $744

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
30 Jul — 6 Aug1
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 30 June 2026.

Sat 8/810:55
MEL
-
SEA
2 stops53h 15m
United Airlines
Wed 26/817:20
SEA
-
MEL
1 stop21h 55m
United Airlines
Deal found 25/6$1,307
Fri 24/709:30
MEL
-
SEA
2 stops39h 30m
United Airlines
Fri 31/720:05
SEA
-
MEL
2 stops43h 10m
United Airlines
Deal found 26/6$1,309
Thu 23/720:45
SYD
-
SEA
1 stop20h 14m
Multiple Airlines
Mon 31/807:20
SEA
-
SYD
1 stop18h 30m
Multiple Airlines
Deal found 25/6$1,320
Wed 12/809:10
SYD
-
SEA
1 stop25h 41m
Multiple Airlines
Wed 19/810:34
SEA
-
SYD
1 stop27h 31m
Multiple Airlines
Deal found 29/6$1,338
Mon 14/909:10
SYD
-
SEA
1 stop26h 16m
Multiple Airlines
Tue 29/914:15
SEA
-
SYD
1 stop23h 50m
Multiple Airlines
Deal found 27/6$1,344
Mon 14/912:00
SYD
-
SEA
1 stop38h 25m
American Airlines
Wed 30/907:10
SEA
-
SYD
1 stop30h 55m
American Airlines
Deal found 27/6$1,352
Mon 10/812:00
SYD
-
SEA
1 stop21h 41m
American Airlines
Mon 17/807:11
SEA
-
SYD
1 stop30h 54m
American Airlines
Deal found 25/6$1,354
Sat 25/720:45
SYD
-
SEA
1 stop20h 14m
Multiple Airlines
Sun 9/821:09
SEA
-
SYD
1 stop28h 41m
Multiple Airlines
Deal found 26/6$1,362
Wed 12/809:10
SYD
-
SEA
2 stops31h 49m
British Airways
Wed 19/811:48
SEA
-
SYD
2 stops26h 17m
British Airways
Deal found 29/6$1,365
Mon 13/709:10
SYD
-
SEA
1 stop21h 38m
British Airways
Wed 29/706:16
SEA
-
SYD
2 stops32h 14m
British Airways
Deal found 29/6$1,367
Mon 20/710:20
SYD
-
SEA
1 stop19h 14m
United Airlines
Mon 10/806:00
SEA
-
SYD
1 stop32h 00m
United Airlines
Deal found 28/6$1,368
Mon 13/709:30
SYD
-
SEA
1 stop22h 06m
United Airlines
Tue 4/823:11
SEA
-
SYD
2 stops38h 49m
United Airlines
Deal found 25/6$1,370

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 30 June 2026.

Round-trip from

$1,307

One-way from

$744

Popular in

January

Cheapest in

August

Average price

$1,576
United Airlines
  • United Airlines
  • 8/8-20/8
  • 3 total stops
  • 72h 55m total
  • Australia to Seattle
Search Deals
14/9
  • 14/9
  • 3 total stops
  • 29h 26m total
  • Australia to Seattle
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($107 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 30 June 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 - SEA

MELSEA

Melbourne

Mon 20/7

10:55-08:00

2 stops38h 05m

Seattle/Tacoma Intl

Tue 28/7

15:33-08:15

1 stop23h 42m

$1,307

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sun 16/8

09:30-15:52

2 stops23h 22m

Seattle/Tacoma Intl

Fri 28/8

12:44-07:30

2 stops25h 46m

$1,307

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sun 2/8

10:55-18:47

1 stop24h 52m

Seattle/Tacoma Intl

Sat 15/8

09:05-08:15

1 stop30h 10m

$1,307

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 28/7

09:30-14:36

1 stop22h 06m

Seattle/Tacoma Intl

Wed 12/8

12:44-06:55

2 stops25h 11m

$1,368

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 13/7

09:30-17:59

2 stops25h 29m

Seattle/Tacoma Intl

Tue 28/7

15:33-06:55

1 stop22h 22m

$1,368

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 12/8

09:30-11:34

1 stop19h 04m

Seattle/Tacoma Intl

Mon 31/8

14:34-07:00

2 stops23h 26m

$1,368

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 13/7

10:20-12:34

1 stop19h 14m

Seattle/Tacoma Intl

Wed 29/7

08:45-06:55

1 stop29h 10m

$1,373

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 27/7

09:15-22:00

2 stops29h 45m

Seattle/Tacoma Intl

Wed 12/8

11:05-06:50

2 stops26h 45m

$1,377

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 23/7

09:15-14:55

1 stop22h 40m

Seattle/Tacoma Intl

Mon 31/8

13:25-06:50

2 stops24h 25m

$1,377

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sun 2/8

10:00-20:27

1 stop27h 27m

Seattle/Tacoma Intl

Thu 20/8

21:45-07:50

1 stop41h 05m

$1,378

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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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, December is the cheapest month in which you can book a flight from Australia to Seattle (average of $620). Flying from Australia to Seattle in October is currently the most expensive (average of $1,132). 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 30 June 2026.
Read through reviews of airlines operating flights from Australia to Seattle, such as Japan Airlines,Virgin Australia, andQantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,852 reviews
Check prices

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.
Japan Airlines
8.3
Very Good
1,852 reviews
Japan Airlines
8.3
Very Good
1,852 reviews
Check prices

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.
Virgin Australia
7.6
Good
462 reviews
Japan Airlines
8.3
Very Good
1,852 reviews
Check prices

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.
Qantas Airways
7.5
Good
1,054 reviews
Japan Airlines
8.3
Very Good
1,852 reviews
Check prices

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.
United Airlines
7.4
Good
9,897 reviews
Japan Airlines
8.3
Very Good
1,852 reviews
Check prices

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.
Air Canada
7.1
Good
11,272 reviews
Japan Airlines
8.3
Very Good
1,852 reviews
Check prices

Boarding

8.4

Food

7.7

Overall

8.3

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.

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 Qantas Airways fly from Australia to Seattle in about 21h 07m. The time it takes to get you to your destination can typically vary by up to 16h 58m. Australia and Seattle are separated by a distance of 11822 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 United Airlines, with whom users have recently found tickets for as low as $591. However, be on the lookout for offers from Air Canada 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 Adelaide - Seattle/Tacoma Intl or Melbourne - 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, December is the cheapest month in which you can book a flight from Australia to Seattle (average of $620). Flying from Australia to Seattle in October is currently the most expensive (average of $1,132). 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 30 June 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 30 June 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$785Average$1,552FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$969Average$1,412FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$973Average$1,341FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$1,007Average$1,452FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Hawaiian AirlinesCheapest$1,091Average$1,882FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Qantas AirwaysCheapest$1,092Average$1,715FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Virgin AustraliaCheapest$1,160Average$1,547FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Air New ZealandCheapest$1,202Average$1,622FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Japan AirlinesCheapest$1,316Average$2,101FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
ANACheapest$1,330Average$1,602FlexibilityNo cancel feeOn-time80%
Search ANA 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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