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Cheap flights from Australia to Seattle from $624

SYD — SEA
13 Nov — 20 Nov1
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 23/1109:15 -
2 stops28h 48m
Mon 30/1118:30 -
1 stop19h 35m
Deal found 9/10$1,064
Mon 2/1111:50 -
1 stop25h 43m
Mon 9/1117:23 -
1 stop20h 57m
Deal found 10/10$1,067
Mon 9/1111:20 -
2 stops25h 37m
Tue 24/1119:35 -
1 stop18h 45m
Deal found 12/10$1,068
Mon 23/1109:15 -
1 stop23h 10m
Wed 2/1215:20 -
1 stop23h 00m
Deal found 12/10$1,076
Sat 7/1111:50 -
1 stop21h 49m
Sun 22/1110:40 -
1 stop27h 40m
Deal found 10/10$1,137
Sun 8/1111:20 -
1 stop19h 06m
Mon 23/1108:30 -
2 stops29h 35m
Deal found 11/10$1,139
Thu 5/1109:10 -
1 stop29h 07m
Fri 13/1116:39 -
1 stop21h 26m
Deal found 12/10$1,146
Sat 31/1011:50 -
1 stop18h 30m
Fri 6/1118:30 -
1 stop19h 35m
Deal found 11/10$1,209
Fri 6/1109:15 -
1 stop29h 02m
Fri 13/1116:39 -
1 stop21h 26m
Deal found 12/10$1,215
Thu 5/1121:40 -
1 stop27h 28m
Thu 12/1107:00 -
1 stop17h 45m
Deal found 14/10$1,260
Thu 22/1008:35 -
1 stop26h 30m
Wed 4/1121:30 -
1 stop41h 50m
Deal found 11/10$1,265
Tue 24/1111:50 -
1 stop23h 37m
Tue 1/1217:28 -
1 stop20h 37m
Deal found 10/10$1,276

Find flight deals from Australia to Seattle

Round-trip from

$1,064

One-way from

$624

Popular in

September

Cheapest in

August

Average price

$1,483
Delta
  • Delta
  • 9/11-16/11
  • 4 total stops
  • 58h 19m total
  • Australia to Seattle
Search Deals
United Airlines
  • United Airlines
  • 29/10-31/12
  • 3 total stops
  • 53h 46m total
  • Australia to Seattle
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($56 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 29/10

09:10-20:56

3 stops53h 46m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$624

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 9/11

11:50-23:07

2 stops30h 17m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$625

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sat 14/11

11:50-23:31

1 stop30h 41m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$708
Fastest return journey

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Sun 31/1

10:40-10:35

1 stop17h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$736

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Sat 14/11

13:35-18:33

2 stops23h 58m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$739

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 27/10

11:50-19:17

3 stops49h 27m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$773

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Wed 2/12

10:40-16:59

2 stops24h 19m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$780

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Fri 4/12

11:20-11:44

2 stops42h 24m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$782

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Mon 1/2

11:20-21:02

3 stops51h 42m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$790

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 20/11

11:50-14:39

1 stop21h 49m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$853

Flights are sorted by cheapest return flights first.

Deals found on 10/10

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 $1,275). Flying from Australia to Seattle in September is currently the most expensive (average of $1,807). 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 68 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
1,625 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Overall

8.2

Comfort

8.0

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
1,625 reviews
Singapore Airlines
8.2
Very Good
1,625 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Overall

8.2

Comfort

8.0

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
1,110 reviews
Singapore Airlines
8.2
Very Good
1,625 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Overall

8.2

Comfort

8.0

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
7.4
Good
10,364 reviews
Singapore Airlines
8.2
Very Good
1,625 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Overall

8.2

Comfort

8.0

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
11,774 reviews
Singapore Airlines
8.2
Very Good
1,625 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Overall

8.2

Comfort

8.0

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
12,171 reviews
Singapore Airlines
8.2
Very Good
1,625 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Crew

8.6

Overall

8.2

Comfort

8.0

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 United Airlines, Virgin Australia, and Delta fly from Australia to Seattle in about 28h 48m. The time it takes to get you to your destination can typically vary by up to 29m. 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 United Airlines, with whom users have recently found tickets for as low as $584. 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 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 $1,275). Flying from Australia to Seattle in September is currently the most expensive (average of $1,807). 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
DeltaCheapest$776Average$1,387FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$834Average$1,467FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$921Average$1,511FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$962Average$1,502FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$970Average$1,738FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Qantas AirwaysCheapest$1,079Average$1,798FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Japan AirlinesCheapest$1,302Average$2,292FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Hawaiian AirlinesCheapest$1,463Average$1,868FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Singapore AirlinesCheapest$1,532Average$1,817FlexibilityNo cancel feeOn-time81%
Search Singapore 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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