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$394+ Cheap flights from Seattle (SEA) to Sydney (SYD)

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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Nov 19 — Nov 261
1 adult
Tue 11/19
Tue 11/26
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The best prices from Seattle/Tacoma Intl to Sydney Kingsford Smith are usually found in February or March, booked 61 days in advance, depart on a Tuesday or Monday and return on a Saturday

Cheap flight deals from Seattle to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Sydney (SYD). 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 14, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

December

Cheapest in

February

Round-trip from

$903
(Kiwi.com)

One-way from

$394
(Kiwi.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sydney Kingsford Smith flights.
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High demand for flights, 14% potential price rise
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Best time to find cheap flights, 10% potential price drop
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From Seattle/Tacoma Intl to Sydney Kingsford Smith
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One-way flight from Seattle/Tacoma Intl to Sydney Kingsford Smith
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Find flight deals from Seattle to Sydney

Cheapest flights from Seattle to Sydney
Explore the most affordable flight options available from Seattle to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 14, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/14. 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.
Fri 11/297:15 amSEA - SYD
1 stop37h 20mMultiple Airlines
Fri 1/175:25 pmSYD - SEA
1 stop22h 55mMultiple Airlines
Deal found 11/14$903
This Delta deal was found by Cheapflights users on 11/14. 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.
Sat 11/167:05 amSEA - SYD
1 stop30h 30mDelta
Fri 11/2911:05 amSYD - SEA
1 stop22h 38mDelta
Deal found 11/14$975
This Alaska Airlines deal was found by Cheapflights users on 11/13. 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 11/157:46 pmSEA - SYD
1 stop28h 59mAlaska Airlines
Thu 11/219:40 pmSYD - SEA
1 stop18h 45mAlaska Airlines
Deal found 11/13$1,014
This United Airlines deal was found by Cheapflights users on 11/14. 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.
Sun 12/11:55 pmSEA - SYD
1 stop24h 20mUnited Airlines
Wed 1/1511:20 amSYD - SEA
1 stop21h 40mUnited Airlines
Deal found 11/14$1,073
This Air Canada deal was found by Cheapflights users on 11/14. 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 12/1210:35 amSEA - SYD
1 stop25h 20mAir Canada
Thu 12/2611:20 amSYD - SEA
1 stop17h 30mAir Canada
Deal found 11/14$1,215
This Gurufare deal was found by Cheapflights users on 11/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/303:40 pmSEA - SYD
1 stop33h 35mANA
Mon 1/209:45 pmSYD - SEA
1 stop34h 35mANA
Deal found 11/14$1,232
This Kissandfly.com deal was found by Cheapflights users on 11/13. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/79:25 amSEA - SYD
1 stop28h 50mLufthansa
Wed 12/1812:10 pmSYD - SEA
1 stop17h 36mLufthansa
Deal found 11/13$1,481
This FlightHub deal was found by Cheapflights users on 11/14. 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.
Sat 11/307:00 pmSEA - SYD
2 stops52h 30mTurkish Airlines
Thu 1/168:40 pmSYD - SEA
2 stops39h 25mTurkish Airlines
Deal found 11/14$1,532

Find flights from Seattle to Sydney within your budget

Customize your flight search to find flights from Seattle to Sydney 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 2,752,363 searches. Data last updated November 14, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Fri 11/29

7:15 am-3:35 pm

1 stop37h 20m

Sydney Kingsford Smith

Fri 1/17

5:25 pm-9:20 pm

1 stop22h 55m

$903

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 2/5

6:00 am-9:00 am

1 stop32h 00m

Sydney Kingsford Smith

Tue 3/4

11:15 am-11:22 pm

1 stop31h 07m

$920

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Fri 2/7

7:05 pm-9:35 am

1 stop19h 30m

Sydney Kingsford Smith

Fri 2/21

11:20 am-9:50 am

1 stop17h 30m

$940

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 2/22

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

Sun 3/16

9:40 pm-9:25 pm

1 stop17h 45m

$955

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 2/26

9:20 am-9:05 am

2 stops28h 45m

Sydney Kingsford Smith

Sun 4/27

9:30 am-6:17 pm

2 stops25h 47m

$977

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 11/27

11:50 am-8:35 am

1 stop25h 45m

Sydney Kingsford Smith

Wed 12/4

11:05 am-4:05 pm

1 stop24h 00m

$986

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 3/3

3:45 pm-8:15 pm

1 stop33h 30m

Sydney Kingsford Smith

Fri 5/2

11:50 am-6:27 pm

2 stops23h 37m

$994

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 4/22

3:50 pm-7:05 am

2 stops22h 15m

Sydney Kingsford Smith

Thu 5/1

9:10 am-12:40 pm

2 stops20h 30m

$1,107

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Thu 3/20

10:05 am-3:35 pm

2 stops35h 30m

$394

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 3/31

7:05 pm-8:20 am

1 stop19h 15m

$531

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/14

Showing 1-10 of 24 results
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Compare providers for flights from Seattle to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Sydney in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars
OneTravelPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Sydney flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Sydney flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Sydney flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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 Sydney

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

How far ahead should I book a flight from Seattle to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Sydney. Price data was last updated on November 8, 2024.

To ensure you get the cheapest price possible for a flight from Seattle to Sydney, you should look to book at least 31 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.

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

Currently, February is the cheapest month in which you can book a flight from Seattle to Sydney (average of $1,062). Flying from Seattle to Sydney 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 SYD?

Find hourly flight availability from Seattle to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 14, 2024.

A simple way to save on the total cost of your ticket is to fly from Seattle to Sydney in the evening. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Seattle to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Sydney. Price data was last updated on November 10, 2024.

Travelers seeking maximum savings on their Seattle to Sydney flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Sydney by month

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

In terms of precipitation, rainfall in Sydney 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 Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

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

If weather is an important factor for your trip to Sydney, 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 Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated November 14, 2024.
To help decide which airline to fly from Seattle to Sydney, see what other customers have to say about Delta and Alaska Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
69 reviews

Crew

8.9

Overall

8.7

Boarding

8.5

Comfort

8.1

Entertainment

7.2

Food

7.8

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
69 reviews
Air Tahiti Nui
8.7
Very good
69 reviews

Crew

8.9

Overall

8.7

Boarding

8.5

Comfort

8.1

Entertainment

7.2

Food

7.8

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
836 reviews
Air Tahiti Nui
8.7
Very good
69 reviews

Crew

8.9

Overall

8.7

Boarding

8.5

Comfort

8.1

Entertainment

7.2

Food

7.8

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
8.4
Very good
478 reviews
Air Tahiti Nui
8.7
Very good
69 reviews

Crew

8.9

Overall

8.7

Boarding

8.5

Comfort

8.1

Entertainment

7.2

Food

7.8

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.

China Airlines
8.3
Very good
779 reviews
Air Tahiti Nui
8.7
Very good
69 reviews

Crew

8.9

Overall

8.7

Boarding

8.5

Comfort

8.1

Entertainment

7.2

Food

7.8

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.

Singapore Airlines
8.1
Very good
1,335 reviews
Air Tahiti Nui
8.7
Very good
69 reviews

Crew

8.9

Overall

8.7

Boarding

8.5

Comfort

8.1

Entertainment

7.2

Food

7.8

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 Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Seattle to Sydney round-trip?

    Cheapflights users have booked flights from Seattle to Sydney round-trip from $920. Other airlines that can offer you cheap pricing are Air Canada, from $934, and Delta, from $944. These flights start at 16% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $531. Hawaiian Airlines flights start at $562 while deals on Delta start at $568 one-way.

  • Where are the most common layover locations when flying from Seattle to Sydney?

    The most popular layover on flights from Seattle to Sydney is Los Angeles. San Francisco sees the second most layovers for non-direct flights flying from Seattle to Sydney.

  • What are some popular things to do or see while on a layover in Los Angeles?

    Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live are currently the most popular points of interest in Los Angeles at the moment. Hollywood Bowl, Hollywood Walk of Fame and L.A. Live are located about 12.5 mi, 11.7 mi, and 10.8 mi, respectively from Los Angeles if you are interested in checking them out. Travelers in need of a car in Los Angeles can rent one for about $43 per day.

  • What are some popular points of interest to see during a layover in San Francisco?

    Fisherman's Wharf, Union Square, and Bill Graham Civic Auditorium are currently the most popular points of interest in San Francisco at the moment. Those on a layover in San Francisco interested in visiting Fisherman's Wharf, Union Square, or Bill Graham Civic Auditorium can do so by traveling 13.0 mi, 11.6 mi, and 11.1 mi, respectively from San Francisco. Those looking to explore during their layover in San Francisco can rent a car from San Francisco for about $52 per day.

  • Where are the least popular layover locations for Seattle to Sydney flights?

    Seattle to Sydney flights have a layover in Honolulu the least frequently. Honolulu is followed by Vancouver in terms of the least popular layover location on flights from Seattle to Sydney.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Seattle to Sydney (average of $1,062). Flying from Seattle to Sydney 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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Alternative routes for Seattle to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Seattle to Sydney

Discover the top 9 airlines that operate flights from Seattle to Sydney. 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 2,752,363 searches. Data last updated November 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$759Average$1,080FlexibilityNo cancel feeOn-time69%
ANACheapest$767Average$1,433FlexibilityNo cancel feeOn-time80%
Air CanadaCheapest$796Average$1,092FlexibilityNo cancel feeOn-time67%
DeltaCheapest$839Average$1,151FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$839Average$1,323FlexibilityNo cancel feeOn-time74%
Hawaiian AirlinesCheapest$890Average$1,144FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$941Average$1,241FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$973Average$1,334FlexibilityNo cancel feeOn-time75%
Air New ZealandCheapest$1,202Average$1,357FlexibilityNo cancel feeOn-time78%
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