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$442+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
mai 6 — mai 131
mar. 5/6
mar. 5/13
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 mai 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$849
(American Airlines)

One-way from

$442
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,093
Provider with most accurate pricing for Sydney Kingsford Smith-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Seattle/Tacoma Intl flights.
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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. 7% potential increase in price ($96 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in May 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 mai 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. 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.
mar. 8/59:10 amSYD - SEA
1 stop21h 50mAmerican Airlines
dim. 8/312:32 pmSEA - SYD
1 stop23h 33mAmerican Airlines
Deal found 4/29$849
This Qantas Airways deal was found by Cheapflights users on 4/29. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/49:10 amSYD - SEA
1 stop30h 00mQantas Airways
mar. 9/24:59 pmSEA - SYD
1 stop21h 06mQantas Airways
Deal found 4/29$850
This United Airlines deal was found by Cheapflights users on 4/29. 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.
lun. 8/49:30 amSYD - SEA
2 stops23h 24mUnited Airlines
lun. 9/15:35 pmSEA - SYD
1 stop20h 20mUnited Airlines
Deal found 4/29$865
This Delta deal was found by Cheapflights users on 4/29. 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.
lun. 7/79:25 amSYD - SEA
1 stop28h 00mDelta
dim. 7/2710:15 amSEA - SYD
1 stop27h 20mDelta
Deal found 4/29$874
This Aunt Betty deal was found by Cheapflights users on 4/29. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 7/510:15 pmBNE - SEA
1 stop38h 35mEVA Air
sam. 7/261:10 amSEA - BNE
1 stop25h 50mEVA Air
Deal found 4/29$992
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 11/207:10 pmSYD - SEA
1 stop31h 00mSingapore Airlines
ven. 11/288:45 amSEA - SYD
1 stop27h 55mSingapore Airlines
Deal found 4/30$1,009
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 11/2012:25 pmSYD - SEA
2 stops25h 01mANA
ven. 11/2810:00 amSEA - SYD
2 stops29h 30mANA
Deal found 4/30$1,054
This Aunt Betty deal was found by Cheapflights users on 4/29. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 7/510:15 pmBNE - SEA
1 stop38h 35mMultiple Airlines
dim. 7/2710:57 pmSEA - BNE
2 stops28h 03mMultiple Airlines
Deal found 4/29$1,098
This Aunt Betty deal was found by Cheapflights users on 4/29. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 8/1412:55 pmMEL - SEA
2 stops24h 05mMultiple Airlines
jeu. 8/283:59 pmSEA - MEL
2 stops27h 01mMultiple Airlines
Deal found 4/29$1,102
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 8/1612:25 pmPER - SEA
2 stops37h 10mJapan Airlines
mar. 8/261:30 pmSEA - PER
2 stops44h 10mJapan Airlines
Deal found 4/29$1,112
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 6/89:50 pmMEL - SEA
1 stop38h 40mChina Airlines
dim. 6/291:10 amSEA - MEL
1 stop40h 30mChina Airlines
Deal found 4/29$1,124
This Qantas Airways deal was found by Cheapflights users on 4/29. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/412:15 pmBNE - SEA
2 stops26h 26mQantas Airways
dim. 8/314:59 pmSEA - BNE
2 stops25h 36mQantas Airways
Deal found 4/29$1,131

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 mai 1, 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

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

mar. 8/5

9:10 am-2:00 pm

1 stop21h 50m

Seattle/Tacoma Intl

dim. 8/31

2:32 pm-7:05 am

1 stop23h 33m

$849

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

lun. 8/4

9:10 am-10:10 pm

1 stop30h 00m

Seattle/Tacoma Intl

mar. 9/2

4:59 pm-7:05 am

1 stop21h 06m

$850

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

lun. 8/4

9:30 am-3:54 pm

2 stops23h 24m

Seattle/Tacoma Intl

lun. 9/1

5:35 pm-6:55 am

1 stop20h 20m

$865

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

lun. 7/7

9:25 am-10:22 pm

2 stops29h 57m

Seattle/Tacoma Intl

mar. 7/29

1:30 pm-6:35 am

2 stops24h 05m

$874

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

sam. 7/5

10:15 pm-7:50 pm

1 stop38h 35m

Seattle/Tacoma Intl

sam. 7/26

1:10 am-8:00 pm

1 stop25h 50m

$992

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

sam. 7/5

10:15 pm-7:50 pm

1 stop38h 35m

Seattle/Tacoma Intl

dim. 7/27

10:57 pm-8:00 pm

2 stops28h 03m

$1,098

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

jeu. 8/14

12:55 pm-8:00 pm

2 stops24h 05m

Seattle/Tacoma Intl

jeu. 8/28

3:59 pm-12:00 pm

2 stops27h 01m

$1,102

PerthSeattle

PER - SEA

PERSEA

Perth

sam. 8/16

12:25 pm-10:35 am

2 stops37h 10m

Seattle/Tacoma Intl

mar. 8/26

1:30 pm-12:40 am

2 stops44h 10m

$1,112

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

dim. 6/8

9:50 pm-7:30 pm

1 stop38h 40m

Seattle/Tacoma Intl

dim. 6/29

1:10 am-10:40 am

1 stop40h 30m

$1,124

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

lun. 8/4

12:15 pm-9:41 pm

2 stops26h 26m

Seattle/Tacoma Intl

dim. 8/31

4:59 pm-11:35 am

2 stops25h 36m

$1,131

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 July is currently the most expensive (average of $405). 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 mai 1, 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.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 mai 1, 2025.
See what other customers who have flown with Air Tahiti Nui, EVA Air and Korean Air from Australia to Seattle have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Comfort

8.1

Boarding

8.7

Food

7.8

Crew

9.1

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.8
Very good
62 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Comfort

8.1

Boarding

8.7

Food

7.8

Crew

9.1

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
EVA Air
8.4
Very good
1,186 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Comfort

8.1

Boarding

8.7

Food

7.8

Crew

9.1

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Korean Air
8.4
Very good
1,069 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Comfort

8.1

Boarding

8.7

Food

7.8

Crew

9.1

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Japan Airlines
8.3
Very good
1,464 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Comfort

8.1

Boarding

8.7

Food

7.8

Crew

9.1

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
China Airlines
8.3
Very good
732 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Comfort

8.1

Boarding

8.7

Food

7.8

Crew

9.1

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

  • 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 $548. Users have also found prices from $562 and $575 on American Airlines and Delta, respectively.

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

    Most travelers choose Melbourne - Seattle/Tacoma Intl, Sydney Kingsford Smith - Seattle/Tacoma Intl or Perth - 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 July is currently the most expensive (average of $405). 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 Australia?

Book flights to Australia if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Lynnwood
Aberdeen
Shelton
Silverdale
Redmond
Issaquah

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 7 airlines flying from Australia to Seattle

Discover the top 7 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 mai 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$673Average$1,353FlexibilityNo cancel feeOn-time69%
DeltaCheapest$870Average$1,392FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$872Average$1,137FlexibilityNo cancel feeOn-time67%
Hawaiian AirlinesCheapest$917Average$1,321FlexibilityNo cancel feeOn-time85%
Qantas AirwaysCheapest$1,058Average$1,630FlexibilityNo cancel feeOn-time74%
Singapore AirlinesCheapest$1,070Average$1,504FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$1,207Average$1,256FlexibilityNo cancel feeOn-time81%

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