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Cheap flights from Australia to Seattle from $623

SYD — SEA
2 Nov — 9 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

Thu 19/1110:40 -
1 stop18h 25m
Mon 30/1107:15 -
1 stop30h 15m
Deal found 2/10$1,065
Thu 15/1010:15 -
1 stop29h 43m
Wed 28/1014:30 -
1 stop22h 50m
Deal found 1/10$1,068
Wed 28/1009:40 -
1 stop21h 00m
Wed 4/1117:45 -
1 stop19h 45m
Deal found 30/9$1,073
Mon 2/1110:40 -
1 stop30h 18m
Fri 6/1109:45 -
1 stop27h 45m
Deal found 2/10$1,134
Thu 29/1009:40 -
2 stops21h 12m
Thu 5/1105:30 -
2 stops32h 00m
Deal found 30/9$1,139
Fri 16/1010:15 -
1 stop22h 35m
Tue 20/1009:45 -
1 stop28h 05m
Deal found 30/9$1,143
Fri 30/1009:40 -
1 stop23h 10m
Sat 14/1105:35 -
2 stops31h 55m
Deal found 2/10$1,205
Wed 11/1111:20 -
1 stop18h 54m
Wed 18/1107:05 -
1 stop28h 55m
Deal found 2/10$1,314
Mon 26/1011:10 -
1 stop29h 27m
Tue 10/1107:10 -
1 stop30h 50m
Deal found 28/9$1,323
Thu 19/1109:10 -
1 stop29h 07m
Mon 30/1119:35 -
1 stop18h 45m
Deal found 30/9$1,325
Tue 27/1009:40 -
2 stops25h 15m
Wed 11/1113:25 -
2 stops24h 05m
Deal found 29/9$1,329
Mon 2/1111:40 -
2 stops25h 48m
Mon 16/1116:59 -
2 stops23h 26m
Deal found 30/9$1,476

Find flight deals from Australia to Seattle

Round-trip from

$1,065

One-way from

$625

Popular in

December

Cheapest in

August

Average price

$1,559
Delta
  • Delta
  • 19/11-30/11
  • 2 total stops
  • 48h 40m total
  • Australia to Seattle
Search Deals
Delta
  • Delta
  • 6/10-31/12
  • 1 total stop
  • 24h 30m total
  • Australia to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($131 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($28 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 21/1

10:40-18:30

2 stops26h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$623

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 16/11

10:40-14:55

2 stops23h 15m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$628

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 20/11

10:40-23:59

2 stops32h 19m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$710

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sat 21/11

10:40-16:51

1 stop25h 11m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$710

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sun 15/11

10:40-23:59

2 stops32h 19m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$717
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

$776

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 9/12

09:15-22:51

1 stop32h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$777

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 9/11

10:40-22:04

1 stop30h 24m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$780

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 21/10

10:15-14:50

1 stop22h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$780

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 3/2

10:40-10:35

1 stop18h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$782

Flights are sorted by cheapest return flights first.

Deals found on 2/10

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 $1,280). Flying from Australia to Seattle in September is currently the most expensive (average of $1,814). 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 90 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
1,619 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Food

7.8

Crew

8.7

Boarding

8.3

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
1,619 reviews
Singapore Airlines
8.2
Very Good
1,619 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Food

7.8

Crew

8.7

Boarding

8.3

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
1,101 reviews
Singapore Airlines
8.2
Very Good
1,619 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Food

7.8

Crew

8.7

Boarding

8.3

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
10,282 reviews
Singapore Airlines
8.2
Very Good
1,619 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Food

7.8

Crew

8.7

Boarding

8.3

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
11,712 reviews
Singapore Airlines
8.2
Very Good
1,619 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Food

7.8

Crew

8.7

Boarding

8.3

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
12,129 reviews
Singapore Airlines
8.2
Very Good
1,619 reviews
Check prices

Comfort

8.0

Overall

8.2

Entertainment

8.1

Food

7.8

Crew

8.7

Boarding

8.3

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 Qantas Airways fly from Australia to Seattle in about 18h 15m. The time it takes to get you to your destination can typically vary by up to 11h 28m. 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 $587. 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 Melbourne - Seattle/Tacoma Intl. You may also consider Brisbane - Seattle/Tacoma Intl or Perth - 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 $1,280). Flying from Australia to Seattle in September is currently the most expensive (average of $1,814). 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

Browse thousands of different options on Cheapflights for your next trip

Fly from Australia to Seattle on these airlines

United Airlines flights from Australia to Seattle/Tacoma Intl

Top 10 airlines flying from Australia to Seattle

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$779Average$1,393FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$837Average$1,497FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$931Average$1,502FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$965Average$1,396FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$974Average$1,661FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Qantas AirwaysCheapest$1,084Average$1,704FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Hawaiian AirlinesCheapest$1,179Average$1,876FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Japan AirlinesCheapest$1,301Average$2,286FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Air New ZealandCheapest$1,412Average$1,665FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Singapore AirlinesCheapest$1,538Average$1,824FlexibilityNo 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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