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$444+ Cheap flights from Sydney (SYD) 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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1. Tell us where you want to go
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The best prices from Sydney Kingsford Smith to Seattle/Tacoma Intl are usually found in March or February, booked 75 days in advance, depart on a Saturday or Sunday and return on a Tuesday

Cheap flight deals from Sydney to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Seattle (SEA). 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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$816
(Trip.com)

One-way from

$444
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$976
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 Sydney Kingsford Smith to Seattle/Tacoma Intl
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One-way flight from Sydney Kingsford Smith to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Sydney to Seattle

Cheapest flights from Sydney to Seattle
Explore the most affordable flight options available from Sydney to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.

This Trip.com deal was found by Cheapflights users on 3/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/172:00 pmSYD - SEA
2 stops23h 59mMultiple Airlines
Thu 3/203:12 pmSEA - SYD
2 stops27h 48mMultiple Airlines
Deal found 3/3$816
This Gotogate deal was found by Cheapflights users on 3/3. 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.
Fri 4/2510:10 amSYD - SEA
1 stop26h 10mPhilippine Airlines
Fri 5/911:30 pmSEA - SYD
1 stop39h 30mPhilippine Airlines
Deal found 3/3$868
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/611:20 amSYD - SEA
1 stop29h 40mAir Canada
Wed 3/195:55 amSEA - SYD
1 stop32h 40mAir Canada
Deal found 3/2$923
This Aunt Betty 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2110:30 amSYD - SEA
1 stop44h 00mAsiana Airlines
Sun 11/22:00 pmSEA - SYD
1 stop23h 30mAsiana Airlines
Deal found 3/2$952
This BYOjet 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:55 amSYD - SEA
1 stop41h 50mSingapore Airlines
Tue 11/48:45 amSEA - SYD
1 stop41h 30mSingapore Airlines
Deal found 3/2$979
This BYOjet 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/229:55 amSYD - SEA
2 stops29h 58mAir New Zealand
Tue 11/46:30 amSEA - SYD
2 stops31h 15mAir New Zealand
Deal found 3/2$985
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/611:15 amSYD - SEA
2 stops24h 46mAmerican Airlines
Wed 3/193:00 pmSEA - SYD
2 stops24h 00mAmerican Airlines
Deal found 3/2$1,001
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/211:50 amSYD - SEA
2 stops23h 43mANA
Sun 5/111:45 pmSEA - SYD
2 stops26h 40mANA
Deal found 3/2$1,030
This United Airlines deal was found by Cheapflights users on 3/3. 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 3/1711:20 amSYD - SEA
2 stops25h 18mUnited Airlines
Thu 3/2012:55 pmSEA - SYD
2 stops26h 20mUnited Airlines
Deal found 3/3$1,059
This Aunt Betty deal was found by Cheapflights users on 3/3. 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.
Fri 9/510:10 pmSYD - SEA
1 stop38h 35mChina Airlines
Tue 9/161:10 amSEA - SYD
1 stop40h 35mChina Airlines
Deal found 3/3$1,073
This BestPriceTravel 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/316:05 pmSYD - SEA
2 stops22h 31mQantas Airways
Wed 4/234:15 pmSEA - SYD
1 stop21h 50mQantas Airways
Deal found 3/2$1,091
This BestPriceTravel deal was found by Cheapflights users on 3/3. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/119:40 pmSYD - SEA
1 stop17h 15mHawaiian Airlines
Tue 6/103:55 pmSEA - SYD
1 stop34h 50mHawaiian Airlines
Deal found 3/3$1,165

Find flights from Sydney to Seattle within your budget

Customize your flight search to find flights from Sydney 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, 2025.

Fly from

Sydney

Fly to

Seattle

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 3/17

2:00 pm-7:59 pm

2 stops23h 59m

Seattle/Tacoma Intl

Thu 3/20

3:12 pm-1:00 pm

2 stops27h 48m

$816

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 4/25

10:10 am-7:20 pm

1 stop26h 10m

Seattle/Tacoma Intl

Fri 5/9

11:30 pm-8:00 am

1 stop39h 30m

$868

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 3/17

10:25 am-2:30 pm

1 stop22h 05m

Seattle/Tacoma Intl

Thu 3/20

3:05 pm-8:35 am

1 stop23h 30m

$969

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 6/3

9:30 am-12:30 pm

1 stop44h 00m

Seattle/Tacoma Intl

Tue 6/17

2:15 pm-7:30 am

1 stop24h 15m

$987

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 5/2

11:50 am-6:33 pm

2 stops23h 43m

Seattle/Tacoma Intl

Sun 5/11

1:45 pm-9:25 am

2 stops26h 40m

$1,030

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 5/12

11:50 am-6:30 pm

2 stops23h 40m

Seattle/Tacoma Intl

Mon 5/26

2:55 pm-8:45 am

2 stops24h 50m

$1,056

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 3/17

11:20 am-6:38 pm

2 stops25h 18m

Seattle/Tacoma Intl

Thu 3/20

12:55 pm-9:15 am

2 stops26h 20m

$1,059

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 3/23

11:15 am-10:36 pm

1 stop29h 21m

Seattle/Tacoma Intl

Fri 3/28

11:59 pm-6:35 am

1 stop36h 36m

$1,085

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 3/31

6:05 pm-10:36 pm

2 stops22h 31m

Seattle/Tacoma Intl

Wed 4/23

4:15 pm-7:05 am

1 stop21h 50m

$1,091

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 6/4

10:10 pm-7:30 pm

1 stop38h 20m

Seattle/Tacoma Intl

Tue 6/17

1:10 am-10:45 am

1 stop40h 35m

$1,101

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 26 results
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Compare providers for flights from Sydney to Seattle

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 Sydney to Seattle in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*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 Sydney-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub 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 Sydney-Seattle 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 Sydney to Seattle

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Sydney to Seattle. Price data was last updated on February 28, 2025.

The best time to book flights from Sydney to Seattle is 75 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Sydney to Seattle (average of $238). Flying from Sydney to Seattle in July is currently the most expensive (average of $411). 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 SYD to SEA?

Find hourly flight availability from Sydney 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 March 3, 2025.

It’s optimal to fly from Sydney to Seattle in the morning. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight at noon.

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 March 3, 2025.
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Crew

9.1

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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
8.7
Very good
61 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Crew

9.1

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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.

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

Comfort

8.0

Crew

9.1

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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
1,435 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Crew

9.1

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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
8.2
Very good
721 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Crew

9.1

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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.

Asiana Airlines
8.2
Very good
443 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Crew

9.1

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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 Sydney to Seattle. 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 Sydney to Seattle round-trip?

    Currently priced at $868, Philippine Airlines will fly you from Sydney to Seattle and back. In addition to Philippine Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Asiana Airlines - these airlines can fly you to your destination from $969 and $987, respectively. Philippine Airlines is 22% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Philippine Airlines, with whom users have recently found tickets for as low as $644. However, be on the lookout for offers from Asiana Airlines and China Airlines, as they are both options that can get you from Sydney to Seattle for a low price.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Sydney to Seattle (average of $238). Flying from Sydney to Seattle in July is currently the most expensive (average of $411). 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 Sydney?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Portland flights

Top 6 airlines flying from Sydney to Seattle

Discover the top 6 airlines that operate flights from Sydney 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, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$671Average$1,215FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$874Average$1,089FlexibilityNo cancel feeOn-time67%
Hawaiian AirlinesCheapest$917Average$1,292FlexibilityNo cancel feeOn-time85%
Qantas AirwaysCheapest$1,058Average$1,679FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$1,207Average$1,256FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$1,269Average$1,364FlexibilityNo cancel feeOn-time76%
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