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$403+ Cheap flights from Australia to Seattle (SEA)

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 3/28. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
Apr 2 — Apr 91
Thu 4/2
Thu 4/9
1 adult, Economy
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Cheap flight deals from Australia to Seattle

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 March 3, 2026.

This American Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:40 pm
BNE
-
SEA
1 stop21h 08m
American Airlines
Mon 3/96:00 am
SEA
-
BNE
1 stop30h 00m
American Airlines
Deal found 2/27$643
This American Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:40 am
BNE
-
SEA
1 stop33h 15m
American Airlines
Wed 3/187:25 am
SEA
-
BNE
2 stops28h 35m
American Airlines
Deal found 3/1$673
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/611:40 am
BNE
-
SEA
2 stops24h 24m
United Airlines
Mon 3/95:00 am
SEA
-
BNE
2 stops32h 30m
United Airlines
Deal found 3/2$681
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/610:40 am
BNE
-
SEA
2 stops31h 29m
Delta
Mon 3/94:55 pm
SEA
-
BNE
2 stops21h 25m
Delta
Deal found 2/27$682
This United Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2710:40 am
BNE
-
SEA
1 stop31h 19m
United Airlines
Fri 4/37:37 pm
SEA
-
BNE
1 stop17h 53m
United Airlines
Deal found 2/27$683
This United Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1110:40 am
BNE
-
SEA
2 stops49h 45m
United Airlines
Sat 3/215:20 pm
SEA
-
BNE
1 stop20h 10m
United Airlines
Deal found 3/1$684
This United Airlines deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:40 am
BNE
-
SEA
2 stops27h 28m
United Airlines
Sun 3/296:30 am
SEA
-
BNE
2 stops31h 00m
United Airlines
Deal found 2/28$685
This BusinessClass deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:00 am
BNE
-
SEA
2 stops32h 42m
Qantas Airways
Sat 3/216:00 am
SEA
-
BNE
2 stops35h 35m
Qantas Airways
Deal found 3/1$761
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:55 am
MEL
-
SEA
2 stops38h 05m
United Airlines
Fri 7/315:04 pm
SEA
-
MEL
1 stop21h 26m
United Airlines
Deal found 3/2$821
This United Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1812:00 pm
MEL
-
SEA
2 stops28h 59m
United Airlines
Sun 3/2212:36 pm
SEA
-
MEL
1 stop26h 24m
United Airlines
Deal found 3/1$825
This Delta deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2910:00 am
MEL
-
SEA
1 stop23h 53m
Delta
Wed 6/242:30 pm
SEA
-
MEL
1 stop24h 20m
Delta
Deal found 3/2$832
This American Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:20 am
SYD
-
SEA
2 stops25h 23m
American Airlines
Wed 3/181:54 pm
SEA
-
SYD
2 stops25h 06m
American Airlines
Deal found 2/26$864

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 March 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$682
(American Airlines)

One-way from

$403
(KAYAK)

Popular in

July

Cheapest in

August

Average price

$1,017
Provider with most accurate pricing for Sydney Kingsford Smith-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Seattle/Tacoma Intl flights.
Search Deals
From Australia to Seattle/Tacoma Intl
Search Deals
One-way flight from Australia to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated March 3, 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

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Mon 6/1

10:55 am-8:53 pm

1 stop26h 58m

Seattle/Tacoma Intl

Fri 7/31

6:30 am-7:30 am

1 stop32h 00m

$821

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Wed 3/18

12:00 pm-6:40 pm

1 stop24h 40m

Seattle/Tacoma Intl

Sun 3/22

7:34 pm-9:00 am

1 stop19h 26m

$821

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 5/29

10:55 am-12:34 pm

1 stop18h 39m

Seattle/Tacoma Intl

Wed 6/24

8:58 am-8:15 am

2 stops30h 17m

$825

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 4/15

9:15 am-6:30 pm

2 stops26h 15m

Seattle/Tacoma Intl

Wed 4/22

1:45 pm-6:50 am

1 stop24h 05m

$887

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 4/14

9:15 am-6:30 pm

2 stops26h 15m

Seattle/Tacoma Intl

Tue 4/21

1:45 pm-6:50 am

1 stop24h 05m

$887

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 4/15

9:15 am-6:26 pm

1 stop26h 11m

Seattle/Tacoma Intl

Tue 4/28

7:35 am-6:50 am

1 stop30h 15m

$888

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 8/11

5:50 pm-9:32 pm

1 stop20h 42m

Seattle/Tacoma Intl

Wed 8/26

2:32 pm-7:30 am

1 stop23h 58m

$910

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 7/12

9:15 am-8:28 pm

1 stop28h 13m

Seattle/Tacoma Intl

Tue 7/28

2:30 pm-6:50 am

1 stop23h 20m

$911

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 5/31

9:15 am-3:05 pm

1 stop22h 50m

Seattle/Tacoma Intl

Sat 6/27

12:00 pm-6:50 am

1 stop25h 50m

$933

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sun 3/29

10:30 am-10:39 am

1 stop17h 09m

Seattle/Tacoma Intl

Sun 4/5

7:37 pm-6:30 am

1 stop17h 53m

$970

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/27

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 round-trip 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 $573). Flying from Australia to Seattle in June is currently the most expensive (average of $794). 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 March 3, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and Air Canada from Australia to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,242 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,242 reviews
Delta
7.9
Good
8,242 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,378 reviews
Delta
7.9
Good
8,242 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,770 reviews
Delta
7.9
Good
8,242 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Australia. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How long is the flight from Australia to Seattle?

    American Airlines, United Airlines, and Qantas Airways can get you from Australia to Seattle in just under 20h 02m. Your travel time can differ by up to 12h 40m. The distance between Australia and Seattle is about 7346 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Australia to Seattle one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $379. Users have also found prices from $421 and $495 on Air Canada and Delta, respectively.

  • What are the most popular routes from Australia to Seattle?

    Most travelers choose Sydney Kingsford Smith - Seattle/Tacoma Intl, Brisbane - Seattle/Tacoma Intl or Melbourne - Seattle/Tacoma Intl when deciding on the best route from Australia to Seattle.

  • 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 vacation 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 $573). Flying from Australia to Seattle in June is currently the most expensive (average of $794). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Australia to Seattle

Discover the top 3 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 2,558,603 searches. Data last updated March 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$431Average$1,060FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$794Average$1,051FlexibilityNo cancel feeOn-time69%
DeltaCheapest$802Average$1,374FlexibilityNo cancel feeOn-timeN/A

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