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Cheap flights from Australia to Seattle from $793

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
12 Jun — 19 Jun1
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 13 May 2026.

Tue 2/610:55
MEL
-
SEA
1 stop22h 25m
United Airlines
Wed 8/719:05
SEA
-
MEL
1 stop20h 10m
United Airlines
Deal found 9/5$1,299
Thu 14/510:55
MEL
-
SEA
1 stop18h 30m
United Airlines
Wed 27/517:06
SEA
-
MEL
1 stop21h 24m
United Airlines
Deal found 13/5$1,300
Sat 6/610:55
MEL
-
SEA
1 stop29h 37m
United Airlines
Sat 13/619:05
SEA
-
MEL
1 stop20h 10m
United Airlines
Deal found 9/5$1,302
Mon 18/510:55
MEL
-
SEA
1 stop18h 30m
United Airlines
Mon 1/610:29
SEA
-
MEL
1 stop28h 46m
United Airlines
Deal found 11/5$1,303
Fri 29/510:55
MEL
-
SEA
1 stop20h 35m
United Airlines
Wed 24/619:05
SEA
-
MEL
1 stop20h 10m
United Airlines
Deal found 11/5$1,304
Tue 19/509:15
SYD
-
SEA
1 stop18h 40m
Delta
Tue 9/612:35
SEA
-
SYD
1 stop25h 15m
Delta
Deal found 12/5$1,308
Sun 7/610:00
MEL
-
SEA
1 stop31h 06m
Delta
Thu 18/620:25
SEA
-
MEL
1 stop42h 25m
Delta
Deal found 12/5$1,311
Fri 31/710:00
MEL
-
SEA
1 stop23h 40m
Delta
Sun 9/821:48
SEA
-
MEL
1 stop41h 02m
Delta
Deal found 12/5$1,314
Sun 31/510:55
MEL
-
SEA
1 stop26h 58m
United Airlines
Sun 7/618:48
SEA
-
MEL
1 stop20h 27m
United Airlines
Deal found 10/5$1,315
Mon 8/609:10
SYD
-
SEA
1 stop18h 51m
Multiple Airlines
Tue 23/615:59
SEA
-
SYD
1 stop22h 06m
Multiple Airlines
Deal found 10/5$1,333
Tue 9/609:10
SYD
-
SEA
1 stop19h 51m
Multiple Airlines
Wed 24/617:10
SEA
-
SYD
1 stop20h 55m
Multiple Airlines
Deal found 11/5$1,335
Tue 21/709:10
SYD
-
SEA
1 stop19h 42m
Multiple Airlines
Wed 5/818:10
SEA
-
SYD
1 stop19h 55m
Multiple Airlines
Deal found 12/5$1,336

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 13 May 2026.

Round-trip from

$1,299

One-way from

$793

Popular in

January

Cheapest in

September

Average price

$1,412
United Airlines
  • United Airlines
  • 2/6-8/7
  • 2 total stops
  • 42h 35m total
  • Australia to Seattle
Search Deals
Delta
  • Delta
  • 20/5
  • 2 total stops
  • 23h 44m total
  • Australia to Seattle
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($148 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($49 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 13 May 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

Fri 29/5

10:55-23:32

1 stop29h 37m

Seattle/Tacoma Intl

Wed 24/6

17:20-08:15

1 stop21h 55m

$1,300

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Mon 1/6

10:55-16:20

1 stop22h 25m

Seattle/Tacoma Intl

Mon 15/6

07:00-08:15

1 stop32h 15m

$1,302

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 2/6

10:55-18:47

1 stop24h 52m

Seattle/Tacoma Intl

Wed 8/7

12:50-08:15

2 stops26h 25m

$1,302

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Wed 3/6

09:30-21:10

2 stops28h 40m

Seattle/Tacoma Intl

Wed 10/6

17:06-07:30

1 stop21h 24m

$1,304

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sun 7/6

10:00-16:47

1 stop23h 47m

Seattle/Tacoma Intl

Thu 18/6

19:50-07:50

2 stops43h 00m

$1,311

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 7/7

09:15-18:33

2 stops26h 18m

Seattle/Tacoma Intl

Tue 14/7

11:05-06:50

2 stops26h 45m

$1,362

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 21/7

09:15-12:30

1 stop20h 15m

Seattle/Tacoma Intl

Wed 5/8

05:15-06:50

2 stops32h 35m

$1,365

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 4/6

09:30-21:10

2 stops28h 40m

Seattle/Tacoma Intl

Sun 28/6

06:00-07:00

1 stop32h 00m

$1,407

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 6/6

09:30-23:32

3 stops31h 02m

Seattle/Tacoma Intl

Sun 21/6

18:48-06:55

1 stop19h 07m

$1,433

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 24/5

10:20-23:10

2 stops29h 50m

Seattle/Tacoma Intl

Sun 31/5

18:48-06:55

1 stop19h 07m

$1,434

Flights are sorted by cheapest return flights first.

Deals found on 12/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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

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 41 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.

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 $591). Flying from Australia to Seattle in April is currently the most expensive (average of $1,044). 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.

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 13 May 2026.
Read through reviews of airlines operating flights from Australia to Seattle, such as Singapore Airlines,Virgin Australia, andQantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,513 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Singapore Airlines
8.2
Very Good
1,513 reviews
Singapore Airlines
8.2
Very Good
1,513 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Virgin Australia
7.6
Good
454 reviews
Singapore Airlines
8.2
Very Good
1,513 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Qantas Airways
7.5
Good
1,037 reviews
Singapore Airlines
8.2
Very Good
1,513 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
United Airlines
7.4
Good
9,711 reviews
Singapore Airlines
8.2
Very Good
1,513 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Air Canada
7.1
Good
11,033 reviews
Singapore Airlines
8.2
Very Good
1,513 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

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 Philippine Airlines fly from Australia to Seattle in about 26h 18m. The time it takes to get you to your destination can typically vary by up to 3h 19m. 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 $548. 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 Brisbane - 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 $591). Flying from Australia to Seattle in April is currently the most expensive (average of $1,044). 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

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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 13 May 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 13 May 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$671Average$1,218FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AustraliaCheapest$798Average$1,667FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Air CanadaCheapest$911Average$1,330FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$928Average$1,312FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$936Average$1,328FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Hawaiian AirlinesCheapest$1,016Average$1,802FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Qantas AirwaysCheapest$1,041Average$1,605FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Alaska AirlinesCheapest$1,042Average$1,501FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
EVA AirCheapest$1,103Average$1,404FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Air New ZealandCheapest$1,145Average$1,546FlexibilityNo 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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