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$376+ Cheap flights from Seattle (SEA) to Australia

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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Seattle to Australia

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Australia (AU0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Seattle to Australia

Cheapest flights from Seattle to Australia
Explore the most affordable flight options available from Seattle to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Alaska Airlines deal was found by Cheapflights users on 11/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/297:41 pmSEA - SYD
1 stop29h 04mAlaska Airlines
Tue 12/109:40 pmSYD - SEA
1 stop28h 51mAlaska Airlines
Deal found 11/20$915
This Mytrip deal was found by Cheapflights users on 11/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/49:25 amSEA - SYD
2 stops39h 20mMultiple Airlines
Mon 12/92:00 pmSYD - SEA
2 stops29h 10mMultiple Airlines
Deal found 11/20$958
This Delta deal was found by Cheapflights users on 11/20. 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.
Tue 11/262:13 pmSEA - SYD
1 stop23h 22mDelta
Wed 12/1111:05 amSYD - SEA
1 stop20h 35mDelta
Deal found 11/20$1,057
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2311:25 amSEA - MEL
1 stop33h 55mMultiple Airlines
Wed 12/44:50 pmMEL - SEA
1 stop23h 35mMultiple Airlines
Deal found 11/18$1,211
This Air Canada deal was found by Cheapflights users on 11/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/83:05 pmSEA - BNE
1 stop23h 35mAir Canada
Sun 3/210:45 amBNE - SEA
1 stop25h 40mAir Canada
Deal found 11/19$1,224
This Air Canada deal was found by Cheapflights users on 11/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/87:15 pmSEA - BNE
2 stops23h 20mMultiple Airlines
Sun 3/210:45 amBNE - SEA
1 stop25h 40mMultiple Airlines
Deal found 11/19$1,244
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/304:30 pmSEA - MEL
2 stops25h 45mUnited Airlines
Mon 1/208:10 amMEL - SEA
2 stops32h 10mUnited Airlines
Deal found 11/19$1,284
This Justfly.com deal was found by Cheapflights users on 11/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/53:05 pmSEA - SYD
1 stop20h 50mAir Canada
Tue 12/171:55 pmSYD - SEA
2 stops38h 55mAir Canada
Deal found 11/19$1,286
This Jetabroad deal was found by Cheapflights users on 11/20. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/217:46 pmSEA - SYD
1 stop28h 59mHawaiian Airlines
Thu 11/289:40 pmSYD - SEA
2 stops20h 10mHawaiian Airlines
Deal found 11/20$1,323
This Delta deal was found by Cheapflights users on 11/20. 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.
Wed 12/411:50 amSEA - BNE
1 stop25h 55mDelta
Wed 1/1511:30 amBNE - SEA
1 stop21h 30mDelta
Deal found 11/20$1,340
This United deal was found by Cheapflights users on 11/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/237:11 pmSEA - BNE
2 stops42h 19mUnited Airlines
Wed 12/411:40 amBNE - SEA
1 stop19h 18mUnited Airlines
Deal found 11/20$1,361
This KAYAK deal was found by Cheapflights users on 11/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/273:40 pmSEA - SYD
1 stop23h 50mANA
Mon 12/29:45 pmSYD - SEA
1 stop34h 35mANA
Deal found 11/20$1,376

Find flights from Seattle to Australia within your budget

Customize your flight search to find flights from Seattle to Australia 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Fri 3/28

5:45 am-7:00 am

1 stop32h 15m

Brisbane

Sun 4/13

10:00 am-9:50 am

1 stop16h 50m

$837

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Mon 2/17

11:45 am-7:45 am

1 stop26h 00m

Brisbane

Wed 3/5

11:30 am-12:58 pm

1 stop19h 28m

$862

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Sun 1/26

5:15 pm-7:30 am

1 stop20h 15m

Brisbane

Tue 2/11

11:40 am-3:45 pm

1 stop22h 05m

$872

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Sun 1/26

7:05 pm-4:55 pm

2 stops27h 50m

Brisbane

Thu 2/13

6:10 am-9:50 am

2 stops21h 40m

$899

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 2/3

5:55 pm-7:45 pm

2 stops54h 50m

Sydney Kingsford Smith

Mon 2/17

5:25 pm-9:20 pm

1 stop22h 55m

$907

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 3/5

2:23 pm-7:45 pm

1 stop34h 22m

Sydney Kingsford Smith

Tue 3/18

9:40 pm-9:25 pm

1 stop17h 45m

$908

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 2/26

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

Fri 3/7

9:40 pm-10:55 pm

2 stops20h 15m

$917

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 4/2

7:05 pm-8:20 am

1 stop19h 15m

Sydney Kingsford Smith

Thu 4/17

9:20 am-9:50 am

1 stop17h 30m

$938

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 3/11

4:45 pm-10:30 am

1 stop23h 45m

Sydney Kingsford Smith

Tue 3/18

9:45 pm-2:20 pm

1 stop34h 35m

$965

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Thu 2/27

7:04 pm-9:00 am

1 stop18h 56m

Sydney Kingsford Smith

Mon 3/10

11:15 am-12:02 pm

1 stop18h 47m

$976

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 60 results
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Best time to book a flight from Seattle to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Seattle 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.

Travel insights for flights from Seattle to Australia

Get recent, data-driven insights about flights from Seattle to Australia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Seattle to Australia?

Currently, February is the cheapest month in which you can book a flight from Seattle to Australia (average of $1,062). Flying from Seattle to Australia in December is currently the most expensive (average of $1,318). 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 SEA to AU?

Find hourly flight availability from Seattle to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

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

Rainfall in Australia by month

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

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

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

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated November 20, 2024.
Read reviews from past customers who have flown ANA, Air Canada and Delta from Seattle to Australia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
68 reviews

Boarding

8.5

Entertainment

7.2

Comfort

8.0

Overall

8.7

Crew

9.0

Food

7.7

Reviews

1 / 2

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
8.7
Very good
68 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Boarding

8.5

Entertainment

7.2

Comfort

8.0

Overall

8.7

Crew

9.0

Food

7.7

Reviews

1 / 2

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
1,308 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Boarding

8.5

Entertainment

7.2

Comfort

8.0

Overall

8.7

Crew

9.0

Food

7.7

Reviews

1 / 2

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.

ANA
8.4
Very good
833 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Boarding

8.5

Entertainment

7.2

Comfort

8.0

Overall

8.7

Crew

9.0

Food

7.7

Reviews

1 / 2

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
1,460 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Boarding

8.5

Entertainment

7.2

Comfort

8.0

Overall

8.7

Crew

9.0

Food

7.7

Reviews

1 / 2

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.

Asiana Airlines
8.3
Very good
476 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Boarding

8.5

Entertainment

7.2

Comfort

8.0

Overall

8.7

Crew

9.0

Food

7.7

Reviews

1 / 2

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 Seattle to Australia. 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 from for flights from Seattle to Australia?

    If you book a flight to Australia from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

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

    $398 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Hawaiian Airlines and United Airlines, with prices starting from $411 and $472, respectively.

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

    The most popular flight routes from Seattle to Australia are Seattle/Tacoma Intl - Sydney Kingsford Smith, Seattle/Tacoma Intl - Melbourne and Seattle/Tacoma Intl - Melbourne Avalon.

  • Can I find deals for flights from Seattle to Australia that include hotel bookings?

    Yes. In addition to deals on Seattle to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Australia.

  • Can I find deals for business class flights from Seattle to Australia?

    Yes. Cheapflights offers flight deals from Seattle to Australia 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 Seattle to Australia?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Australia (average of $1,062). Flying from Seattle to Australia in December is currently the most expensive (average of $1,318). 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

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Top 10 airlines flying from Seattle to Australia

Discover the top 10 airlines that operate flights from Seattle to Australia. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$759Average$1,396FlexibilityNo cancel feeOn-time69%
ANACheapest$767Average$1,433FlexibilityNo cancel feeOn-time80%
Air CanadaCheapest$796Average$1,242FlexibilityNo cancel feeOn-time67%
DeltaCheapest$839Average$1,136FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$839Average$1,542FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$863Average$1,310FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$890Average$1,143FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$973Average$1,328FlexibilityNo cancel feeOn-time75%
Air New ZealandCheapest$1,202Average$1,497FlexibilityNo cancel feeOn-time78%
Singapore AirlinesCheapest$1,210Average$1,597FlexibilityNo cancel feeOn-time81%
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