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Cheap flights from Australia to Seattle from $675

SYD — SEA
8 Dec — 15 Dec1
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

Mon 9/1111:10 -
2 stops31h 32m
Sun 22/1107:21 -
1 stop30h 39m
Deal found 3/11$1,320
Wed 25/1110:40 -
1 stop42h 25m
Mon 7/1217:37 -
1 stop19h 53m
Deal found 3/11$1,342
Mon 9/1110:40 -
2 stops32h 19m
Sun 22/1105:35 -
2 stops31h 55m
Deal found 3/11$1,344
Wed 2/1211:20 -
1 stop25h 08m
Fri 25/1217:35 -
1 stop19h 55m
Deal found 3/11$1,355
Sun 8/1111:20 -
2 stops29h 55m
Sun 15/1123:59 -
2 stops37h 31m
Deal found 2/11$1,360
Mon 16/1111:20 -
1 stop27h 27m
Tue 1/1209:01 -
1 stop28h 29m
Deal found 3/11$1,371
Wed 25/1111:10 -
1 stop46h 23m
Sun 6/1216:42 -
1 stop21h 18m
Deal found 3/11$1,374
Mon 16/1109:40 -
1 stop23h 11m
Tue 1/1211:32 -
2 stops24h 58m
Deal found 3/11$1,381
Mon 9/1111:50 -
1 stop21h 49m
Sun 22/1116:39 -
1 stop21h 26m
Deal found 7/11$1,400
Thu 3/1211:50 -
2 stops25h 34m
Mon 25/119:28 -
1 stop18h 52m
Deal found 4/11$1,409
Wed 25/1110:40 -
1 stop45h 00m
Mon 1/214:40 -
1 stop22h 50m
Deal found 3/11$1,416
Mon 7/1209:40 -
1 stop41h 54m
Thu 24/1207:06 -
1 stop28h 44m
Deal found 3/11$1,445

Find flight deals from Australia to Seattle

Round-trip from

$1,342

One-way from

$675

Popular in

September

Cheapest in

November

Average price

$1,361
Delta
  • Delta
  • 25/11-7/12
  • 2 total stops
  • 62h 18m total
  • Australia to Seattle
Search Deals
24/1-31/12
  • 24/1-31/12
  • 3 total stops
  • 45h 28m total
  • Australia to Seattle
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($95 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($68 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

 
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

Mon 1/2

13:35-12:58

3 stops42h 23m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$786

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 21/1

11:50-14:26

1 stop21h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$796

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 21/1

13:35-20:24

1 stop25h 49m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$811

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 3/12

11:20-18:24

2 stops26h 04m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$822

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 25/2

09:20-22:59

1 stop32h 39m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$822
Fastest return journey

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Wed 20/1

10:40-10:30

1 stop17h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$830

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Thu 19/11

09:40-20:08

1 stop28h 28m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$838

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Wed 20/1

11:20-21:02

3 stops51h 42m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$841

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 22/1

11:50-21:17

2 stops28h 27m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$870

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/4

13:15-18:01

2 stops21h 46m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$873

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 $1,330). Flying from Australia to Seattle in September is currently the most expensive (average of $1,862). 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 76 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

Read through reviews of airlines operating flights from Australia to Seattle, such as Singapore Airlines,Qantas Airways, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,632 reviews
Check prices

Crew

8.6

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Entertainment

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.
Singapore Airlines
8.2
Very Good
1,632 reviews
Singapore Airlines
8.2
Very Good
1,632 reviews
Check prices

Crew

8.6

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Entertainment

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.
Qantas Airways
7.5
Good
1,123 reviews
Singapore Airlines
8.2
Very Good
1,632 reviews
Check prices

Crew

8.6

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Entertainment

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.
United Airlines
7.3
Good
10,469 reviews
Singapore Airlines
8.2
Very Good
1,632 reviews
Check prices

Crew

8.6

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Entertainment

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.
Air Canada
7.1
Good
11,875 reviews
Singapore Airlines
8.2
Very Good
1,632 reviews
Check prices

Crew

8.6

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Entertainment

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.
American Airlines
7.0
Good
12,232 reviews
Singapore Airlines
8.2
Very Good
1,632 reviews
Check prices

Crew

8.6

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Entertainment

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.

Related info for your journey

  • 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 Delta, United Airlines, and Virgin Australia fly from Australia to Seattle in about 22h 37m. The time it takes to get you to your destination can typically vary by up to 6h 48m. 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 United Airlines, with whom users have recently found tickets for as low as $593. However, be on the lookout for offers from Air Canada and Qantas Airways, 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 Melbourne - Seattle/Tacoma Intl. You may also consider Sydney Kingsford Smith - 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 $1,330). Flying from Australia to Seattle in September is currently the most expensive (average of $1,862). 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
Tukwila
Ocean Shores

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Fly from Australia to Seattle on these airlines

United Airlines flights from Australia to Seattle/Tacoma Intl

Top 9 airlines flying from Australia to Seattle

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$846Average$1,489FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$935Average$1,536FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AustraliaCheapest$943Average$1,620FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
United AirlinesCheapest$976Average$1,522FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$1,002Average$1,410FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Qantas AirwaysCheapest$1,096Average$1,821FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Japan AirlinesCheapest$1,322Average$2,248FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Singapore AirlinesCheapest$1,555Average$1,844FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Hawaiian AirlinesCheapest$1,582Average$1,896FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights

Fly with Cheapflights

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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