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$404+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$758
(Trip.com)

One-way from

$404
(Trip.com)

Popular in

December

Cheapest in

March

Average price

$1,131
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. 9% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 30, 2025.

This Trip.com deal was found by Cheapflights users on 1/28. 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.
Tue 3/112:00 pmSYD - SEA
2 stops23h 59mMultiple Airlines
Tue 3/183:02 pmSEA - SYD
2 stops36h 48mMultiple Airlines
Deal found 1/28$758
This CheapTickets deal was found by Cheapflights users on 1/30. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1611:10 amSYD - SEA
1 stop26h 00mPhilippine Airlines
Sun 3/2311:35 pmSEA - SYD
1 stop39h 55mPhilippine Airlines
Deal found 1/30$800
This BestPriceTravel deal was found by Cheapflights users on 1/28. 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.
Fri 2/79:40 pmSYD - SEA
1 stop20h 50mHawaiian Airlines
Thu 3/137:45 amSEA - SYD
1 stop18h 00mHawaiian Airlines
Deal found 1/28$879
This Aunt Betty deal was found by Cheapflights users on 1/30. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/69:30 amSYD - SEA
1 stop44h 00mAsiana Airlines
Sat 9/132:05 pmSEA - SYD
1 stop24h 25mAsiana Airlines
Deal found 1/30$984
This Gotogate deal was found by Cheapflights users on 1/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/910:10 pmSYD - SEA
1 stop39h 05mChina Airlines
Sat 3/221:10 amSEA - SYD
1 stop41h 00mChina Airlines
Deal found 1/30$998
This Air Canada deal was found by Cheapflights users on 1/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/99:20 amSYD - SEA
1 stop21h 53mAir Canada
Fri 6/272:55 pmSEA - SYD
1 stop23h 25mAir Canada
Deal found 1/29$1,046
This ANA deal was found by Cheapflights users on 1/29. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/128:55 pmSYD - SEA
1 stop34h 30mANA
Mon 5/261:45 pmSEA - SYD
2 stops26h 40mANA
Deal found 1/29$1,091
This Globehunters deal was found by Cheapflights users on 1/29. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/318:15 amSYD - SEA
2 stops30h 20mJapan Airlines
Sun 8/248:05 amSEA - SYD
2 stops29h 05mJapan Airlines
Deal found 1/29$1,164
This United deal was found by Cheapflights users on 1/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/319:30 amSYD - SEA
2 stops28h 42mUnited Airlines
Sun 8/246:35 amSEA - SYD
3 stops55h 25mUnited Airlines
Deal found 1/29$1,212
This Air New Zealand deal was found by Cheapflights users on 1/29. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2311:45 amSYD - SEA
2 stops24h 40mAir New Zealand
Fri 3/283:05 pmSEA - SYD
2 stops23h 40mAir New Zealand
Deal found 1/29$1,292
This Delta deal was found by Cheapflights users on 1/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/239:25 amSYD - SEA
2 stops26h 04mDelta
Fri 5/309:40 amSEA - SYD
1 stop27h 55mDelta
Deal found 1/30$1,315

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 3/11

2:00 pm-7:59 pm

2 stops23h 59m

Seattle/Tacoma Intl

Tue 3/18

3:02 pm-9:50 pm

2 stops36h 48m

$758

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 3/16

11:10 am-7:10 pm

1 stop26h 00m

Seattle/Tacoma Intl

Sun 3/23

11:35 pm-9:30 am

1 stop39h 55m

$800

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 2/7

9:40 pm-11:30 pm

1 stop20h 50m

Seattle/Tacoma Intl

Thu 3/13

7:45 am-7:45 pm

1 stop18h 00m

$879

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 3/9

10:10 pm-7:15 pm

1 stop39h 05m

Seattle/Tacoma Intl

Sat 3/22

1:10 am-12:10 pm

1 stop41h 00m

$998

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 3/13

10:20 am-11:55 am

1 stop43h 35m

Seattle/Tacoma Intl

Fri 6/20

2:05 pm-7:30 am

1 stop24h 25m

$1,031

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 3/13

10:25 am-9:50 am

1 stop17h 25m

Seattle/Tacoma Intl

Fri 6/20

7:15 pm-11:40 am

2 stops23h 25m

$1,107

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 2/26

9:45 pm-1:20 pm

1 stop34h 35m

Seattle/Tacoma Intl

Fri 3/21

4:45 pm-8:15 pm

1 stop33h 30m

$1,192

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 3/23

11:45 am-6:25 pm

2 stops24h 40m

Seattle/Tacoma Intl

Fri 3/28

3:05 pm-8:45 am

2 stops23h 40m

$1,292

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 3/13

12:10 pm-11:50 am

1 stop17h 40m

Seattle/Tacoma Intl

Sun 6/22

8:58 am-7:00 am

2 stops29h 02m

$1,404

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 3/13

1:15 pm-2:39 pm

1 stop19h 24m

Seattle/Tacoma Intl

Sat 6/21

9:25 pm-6:35 am

2 stops40h 10m

$1,413

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 24 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 January.
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 January 24, 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 January 30, 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 January 30, 2025.
Get a feel of what it's like to fly with Air Tahiti Nui, ANA and Asiana Airlines from Sydney to Seattle by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Crew

9.1

Overall

8.7

Comfort

8.0

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

Boarding

8.7

Entertainment

7.2

Food

7.8

Crew

9.1

Overall

8.7

Comfort

8.0

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
844 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Crew

9.1

Overall

8.7

Comfort

8.0

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
8.3
Very good
462 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Crew

9.1

Overall

8.7

Comfort

8.0

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
726 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Crew

9.1

Overall

8.7

Comfort

8.0

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.

Fiji Airways
8.0
Very good
186 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Crew

9.1

Overall

8.7

Comfort

8.0

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 $800, 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 Hawaiian Airlines and China Airlines - these airlines can fly you to your destination from $879 and $998, respectively. Philippine Airlines is 27% 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 China Airlines, with whom users have recently found tickets for as low as $651. However, be on the lookout for offers from Philippine Airlines and Asiana 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
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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 5 airlines flying from Sydney to Seattle

Discover the top 5 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$671Average$1,117FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$830Average$1,089FlexibilityNo cancel feeOn-time67%
Hawaiian AirlinesCheapest$897Average$1,305FlexibilityNo cancel feeOn-time85%
Korean AirCheapest$1,207Average$1,256FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$1,269Average$1,364FlexibilityNo cancel feeOn-time76%
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