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$431+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheap flight deals from Australia to Seattle

Keep the following information in mind while searching for Australia to Seattle flight deals. Data was last updated August 21, 2025.

Round-trip from

$816
(BYOjet)

One-way from

$431
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,005
From Australia to Seattle/Tacoma Intl
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One-way flight from Australia to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 8% potential increase in price ($97 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 21, 2025.

This Orbitz deal was found by Cheapflights users on 8/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:10 amMEL - SEA
2 stops26h 16mAir Canada
Sun 11/303:40 pmSEA - MEL
2 stops28h 55mAir Canada
Deal found 8/19$799
This BYOjet deal was found by Cheapflights users on 8/21. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:10 amMEL - SEA
2 stops20h 11mAir Canada
Sun 11/98:00 pmSEA - MEL
2 stops22h 35mAir Canada
Deal found 8/21$816
This Netflights deal was found by Cheapflights users on 8/21. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:20 amSYD - SEA
1 stop26h 56mAir Canada
Tue 11/1110:05 amSEA - SYD
1 stop28h 30mAir Canada
Deal found 8/21$821
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:20 amSYD - SEA
1 stop17h 01mAir Canada
Sun 10/268:00 pmSEA - SYD
1 stop18h 35mAir Canada
Deal found 8/20$824
This American Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 8/249:10 amSYD - SEA
1 stop21h 51mAmerican Airlines
Sat 9/63:23 pmSEA - SYD
1 stop22h 42mAmerican Airlines
Deal found 8/20$825
This Delta deal was found by Cheapflights users on 8/21. 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.
Tue 8/269:25 amSYD - SEA
2 stops22h 18mDelta
Sun 9/141:30 pmSEA - SYD
2 stops24h 05mDelta
Deal found 8/21$826
This Air Canada deal was found by Cheapflights users on 8/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2011:20 amSYD - SEA
1 stop22h 06mAir Canada
Fri 11/285:50 amSEA - SYD
1 stop32h 45mAir Canada
Deal found 8/20$828
This American Airlines deal was found by Cheapflights users on 8/20. 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.
Tue 9/239:10 amSYD - SEA
1 stop29h 48mAmerican Airlines
Mon 9/298:08 amSEA - SYD
2 stops29h 57mAmerican Airlines
Deal found 8/20$829
This Booking.com deal was found by Cheapflights users on 8/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1210:00 amBNE - SEA
2 stops26h 14mMultiple Airlines
Fri 10/3111:55 amSEA - BNE
2 stops26h 50mMultiple Airlines
Deal found 8/21$830
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 9/219:25 amSYD - SEA
2 stops22h 14mDelta
Mon 9/292:25 pmSEA - SYD
1 stop23h 10mDelta
Deal found 8/20$830
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 8/249:25 amSYD - SEA
2 stops24h 13mDelta
Sat 9/69:45 amSEA - SYD
2 stops27h 50mDelta
Deal found 8/20$831
This Booking.com deal was found by Cheapflights users on 8/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:00 pmSYD - SEA
1 stop17h 26mMultiple Airlines
Sun 1/410:05 amSEA - SYD
2 stops34h 50mMultiple Airlines
Deal found 8/21$832

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 August 21, 2025.
Use the filters below to find and compare flights from Australia to Seattle that are best for you.

Fly from

Australia

Fly to

Seattle

Route

Depart

Return

Price

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 11/20

7:10 am-2:26 pm

2 stops26h 16m

Seattle/Tacoma Intl

Sun 11/30

3:40 pm-3:35 pm

2 stops28h 55m

$799

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 11/7

11:20 am-7:16 pm

1 stop26h 56m

Seattle/Tacoma Intl

Tue 11/11

10:05 am-9:35 am

1 stop28h 30m

$821

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 11/20

11:20 am-9:31 am

1 stop17h 11m

Seattle/Tacoma Intl

Fri 11/28

10:05 am-9:35 am

1 stop28h 30m

$824

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 10/17

10:20 am-9:21 am

1 stop17h 01m

Seattle/Tacoma Intl

Sun 10/26

8:00 pm-8:35 am

1 stop18h 35m

$824

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 9/18

9:40 pm-7:15 am

2 stops26h 35m

Seattle/Tacoma Intl

Fri 9/19

6:27 pm-7:45 pm

2 stops32h 18m

$825

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 8/31

9:30 am-5:58 pm

2 stops25h 28m

Seattle/Tacoma Intl

Thu 9/11

7:34 pm-6:55 am

1 stop18h 21m

$826

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 8/31

9:30 am-1:30 pm

1 stop21h 00m

Seattle/Tacoma Intl

Fri 9/12

7:34 pm-6:55 am

1 stop18h 21m

$826

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 8/31

9:30 am-1:30 pm

1 stop21h 00m

Seattle/Tacoma Intl

Sun 9/14

5:35 pm-6:55 am

1 stop20h 20m

$826

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 8/31

9:30 am-3:43 pm

2 stops23h 13m

Seattle/Tacoma Intl

Sat 9/13

5:35 pm-6:55 am

1 stop20h 20m

$826

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 8/31

9:30 am-1:30 pm

1 stop21h 00m

Seattle/Tacoma Intl

Mon 9/8

2:29 pm-6:55 am

1 stop23h 26m

$826

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 60 results
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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 $238). Flying from Australia to Seattle in June is currently the most expensive (average of $388). 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.

What is the cheapest time of day to fly from AU to SEA?

Find hourly flight availability from Australia to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Australia to Seattle as you normally would.

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 August 21, 2025.
Get a feel of what it's like to fly with Delta, Hawaiian Airlines, and Qantas Airways 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
8.0
Very good
7,981 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Hawaiian Airlines
7.8
Good
2,672 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Qantas Airways
7.5
Good
898 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
United Airlines
7.4
Good
8,930 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

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?

    Air Canada, Alaska Airlines, and United Airlines can get you from Australia to Seattle in just under 19h 28m. Your travel time can differ by up to 7h 07m. The distance between Australia and Seattle is about 8180 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 Air Canada. According to our data, you can fly for as low as $462. Users have also found prices from $598 and $611 on Philippine Airlines and Japan Airlines, respectively.

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

    Most travelers choose Brisbane - Seattle/Tacoma Intl, Sydney Kingsford Smith - 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 $238). Flying from Australia to Seattle in June is currently the most expensive (average of $388). 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
SeaTac
Tukwila
Tacoma
Lakewood
Lacey
Ocean Shores
Lynnwood
Leavenworth
Renton
Olympia
Kent
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Australia to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Australia to Seattle

Discover the top 6 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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$794Average$1,090FlexibilityNo cancel feeOn-time69%
DeltaCheapest$802Average$1,374FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$828Average$1,156FlexibilityNo cancel feeOn-time67%
Hawaiian AirlinesCheapest$960Average$1,452FlexibilityNo cancel feeOn-time85%
Singapore AirlinesCheapest$1,070Average$1,504FlexibilityNo cancel feeOn-time81%
Qantas AirwaysCheapest$1,214Average$1,798FlexibilityNo cancel feeOn-time74%

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