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Cheap flights from Australia to Seattle from $641

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
17 Apr — 24 Apr1
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 18 March 2026.

Sat 16/510:55
MEL
-
SEA
1 stop20h 41m
United Airlines
Thu 28/505:00
SEA
-
MEL
1 stop34h 15m
United Airlines
Deal found 15/3$1,067
Sat 25/410:55
MEL
-
SEA
1 stop20h 51m
United Airlines
Sat 16/523:53
SEA
-
MEL
2 stops39h 22m
United Airlines
Deal found 14/3$1,074
Fri 15/510:00
MEL
-
SEA
1 stop19h 23m
Delta
Sun 7/617:45
SEA
-
MEL
2 stops45h 05m
Delta
Deal found 15/3$1,077
Tue 12/510:55
MEL
-
SEA
1 stop20h 41m
United Airlines
Sat 30/510:29
SEA
-
MEL
1 stop28h 46m
United Airlines
Deal found 15/3$1,100
Fri 29/509:30
MEL
-
SEA
1 stop22h 06m
United Airlines
Wed 24/614:36
SEA
-
MEL
2 stops23h 54m
United Airlines
Deal found 17/3$1,158
Tue 28/413:25
MEL
-
SEA
2 stops22h 15m
Multiple Airlines
Tue 5/514:48
SEA
-
MEL
2 stops28h 12m
Multiple Airlines
Deal found 14/3$1,191
Thu 4/606:00
MEL
-
SEA
2 stops20h 50m
Multiple Airlines
Fri 3/719:20
SEA
-
MEL
2 stops23h 15m
Multiple Airlines
Deal found 15/3$1,238
Fri 29/510:00
MEL
-
SEA
2 stops23h 44m
Delta
Wed 24/607:20
SEA
-
MEL
2 stops31h 30m
Delta
Deal found 15/3$1,259
Wed 6/511:35
BNE
-
SEA
2 stops24h 05m
Multiple Airlines
Wed 20/516:28
SEA
-
BNE
2 stops25h 07m
Multiple Airlines
Deal found 18/3$1,279
Sun 12/720:45
SYD
-
SEA
1 stop20h 14m
Multiple Airlines
Tue 28/721:09
SEA
-
SYD
1 stop28h 41m
Multiple Airlines
Deal found 17/3$1,280
Tue 28/410:00
BNE
-
SEA
1 stop16h 38m
Air Canada
Tue 5/514:55
SEA
-
BNE
1 stop23h 10m
Air Canada
Deal found 13/3$1,287
Wed 3/609:10
SYD
-
SEA
1 stop21h 47m
American Airlines
Sun 28/606:20
SEA
-
SYD
2 stops31h 45m
American Airlines
Deal found 16/3$1,292

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 18 March 2026.

Round-trip from

$1,067

One-way from

$641

Popular in

July

Cheapest in

August

Average price

$1,443
United Airlines
  • United Airlines
  • 16/5-28/5
  • 2 total stops
  • 54h 56m total
  • Australia to Seattle
Search Deals
Air Canada
  • Air Canada
  • 7/5
  • 2 total stops
  • 25h 20m total
  • Australia to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($125 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($66 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 18 March 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

Sat 16/5

10:55-14:36

1 stop20h 41m

Seattle/Tacoma Intl

Fri 29/5

08:56-07:30

2 stops29h 34m

$1,067

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sat 16/5

10:55-14:36

1 stop20h 41m

Seattle/Tacoma Intl

Thu 28/5

05:00-08:15

1 stop34h 15m

$1,067

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 28/4

10:55-22:42

2 stops28h 47m

Seattle/Tacoma Intl

Tue 5/5

10:52-08:15

2 stops28h 23m

$1,074

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 29/5

10:55-16:20

1 stop22h 25m

Seattle/Tacoma Intl

Wed 24/6

08:58-08:15

2 stops30h 17m

$1,074

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 12/5

10:55-21:06

2 stops27h 11m

Seattle/Tacoma Intl

Sat 30/5

11:02-08:15

2 stops28h 13m

$1,176

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 29/5

10:00-20:30

1 stop27h 30m

Seattle/Tacoma Intl

Wed 24/6

14:30-07:50

1 stop24h 20m

$1,259

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 3/6

10:20-14:30

1 stop21h 10m

Seattle/Tacoma Intl

Sun 28/6

17:04-07:00

1 stop20h 56m

$1,317

MelbourneSeattle

AVV - SEA

AVVSEA

Melbourne Avalon

Thu 16/4

20:55-09:38

2 stops29h 43m

Seattle/Tacoma Intl

Thu 23/4

15:45-14:10

2 stops29h 25m

$1,364

MelbourneSeattle

AVV - SEA

AVVSEA

Melbourne Avalon

Sat 16/5

20:40-09:50

2 stops30h 10m

Seattle/Tacoma Intl

Fri 29/5

19:20-14:20

2 stops26h 00m

$1,369

MelbourneSeattle

AVV - SEA

AVVSEA

Melbourne Avalon

Sat 16/5

20:40-09:50

2 stops30h 10m

Seattle/Tacoma Intl

Sat 30/5

14:55-14:20

2 stops30h 25m

$1,369

Flights are sorted by cheapest return flights first.

Deals found on 14/3

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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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, January is the cheapest month in which you can book a flight from Australia to Seattle (average of $809). Flying from Australia to Seattle in July 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.

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 18 March 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
1,480 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Singapore Airlines
8.2
Very Good
1,480 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Virgin Australia
7.6
Good
449 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Qantas Airways
7.5
Good
1,006 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
United Airlines
7.4
Good
9,434 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Air Canada
7.1
Good
10,814 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

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 American Airlines fly from Australia to Seattle in about 20h 41m. The time it takes to get you to your destination can typically vary by up to 3h 52m. 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 $560. However, be on the lookout for offers from Qantas Airways and United 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, January is the cheapest month in which you can book a flight from Australia to Seattle (average of $809). Flying from Australia to Seattle in July 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
Ocean Shores
SeaTac

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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 18 March 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 18 March 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$685Average$1,962FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$943Average$1,383FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$947Average$1,432FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$955Average$1,276FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$964Average$1,517FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Virgin AustraliaCheapest$1,061Average$1,704FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Qantas AirwaysCheapest$1,063Average$1,627FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Alaska AirlinesCheapest$1,105Average$1,718FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Hawaiian AirlinesCheapest$1,145Average$1,831FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
EVA AirCheapest$1,257Average$1,462FlexibilityNo cancel feeOn-time74%
Search EVA Air 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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