HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$654+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
May 28 — Jun 41
Thu 5/28
Thu 6/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sydney to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 April 28, 2026.

This Bravofly deal was found by Cheapflights users on 4/24. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:10 am
SYD
-
SEA
1 stop29h 39m
Qantas Airways
Mon 6/152:40 pm
SEA
-
SYD
1 stop23h 25m
Qantas Airways
Deal found 4/24$973
This Delta deal was found by Cheapflights users on 4/25. 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.
Mon 4/279:15 am
SYD
-
SEA
2 stops24h 33m
Delta
Sun 5/1010:50 am
SEA
-
SYD
2 stops27h 00m
Delta
Deal found 4/25$976
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 5/2110:20 am
SYD
-
SEA
1 stop19h 14m
United Airlines
Tue 6/91:30 pm
SEA
-
SYD
1 stop24h 25m
United Airlines
Deal found 4/23$977
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Tue 4/2810:20 am
SYD
-
SEA
1 stop17h 19m
United Airlines
Sun 5/174:32 pm
SEA
-
SYD
1 stop21h 28m
United Airlines
Deal found 4/27$978
This Delta deal was found by Cheapflights users on 4/23. 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 5/129:15 am
SYD
-
SEA
2 stops20h 45m
Delta
Sun 5/241:25 pm
SEA
-
SYD
2 stops24h 25m
Delta
Deal found 4/23$979
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:30 am
SYD
-
SEA
1 stop19h 03m
United Airlines
Sat 8/2911:56 pm
SEA
-
SYD
2 stops38h 04m
United Airlines
Deal found 4/28$982
This Booking.com deal was found by Cheapflights users on 4/23. 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 5/219:20 am
SYD
-
SEA
1 stop26h 10m
Air Canada
Thu 5/2810:45 am
SEA
-
SYD
1 stop27h 35m
Air Canada
Deal found 4/23$995
This BYOjet deal was found by Cheapflights users on 4/27. 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.
Mon 6/86:00 am
SYD
-
SEA
2 stops29h 30m
Air Canada
Mon 6/157:20 pm
SEA
-
SYD
2 stops24h 20m
Air Canada
Deal found 4/27$998
This BYOjet deal was found by Cheapflights users on 4/26. 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.
Sun 5/249:20 am
SYD
-
SEA
1 stop17h 45m
Air Canada
Mon 6/83:00 pm
SEA
-
SYD
1 stop23h 20m
Air Canada
Deal found 4/26$999
This Aunt Betty deal was found by Cheapflights users on 4/26. 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.
Sun 5/246:00 am
SYD
-
SEA
2 stops21h 05m
Multiple Airlines
Mon 6/83:00 pm
SEA
-
SYD
1 stop23h 20m
Multiple Airlines
Deal found 4/26$1,008
This BYOjet deal was found by Cheapflights users on 4/23. 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.
Thu 5/217:00 am
SYD
-
SEA
2 stops20h 05m
Multiple Airlines
Fri 6/510:45 am
SEA
-
SYD
1 stop27h 35m
Multiple Airlines
Deal found 4/23$1,009

Find 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 April 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$973
(Bravofly)

One-way from

$654
(Air Canada)

Popular in

July

Cheapest in

August

Average price

$1,095
Provider with most accurate pricing for Sydney Kingsford Smith-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Seattle/Tacoma Intl flights.
Search Deals
From Sydney Kingsford Smith to Seattle/Tacoma Intl
Search Deals
One-way flight from Sydney Kingsford Smith to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
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 April 28, 2026.
Use the filters below to find and compare flights from Sydney to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 6/8

9:30 am-3:55 pm

2 stops23h 25m

Seattle/Tacoma Intl

Mon 6/15

11:02 am-6:55 am

2 stops26h 53m

$977

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 5/21

10:20 am-4:20 pm

1 stop23h 00m

Seattle/Tacoma Intl

Wed 6/10

5:20 pm-6:55 am

1 stop20h 35m

$977

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 6/10

9:30 am-9:10 pm

2 stops28h 40m

Seattle/Tacoma Intl

Wed 6/17

5:04 pm-7:00 am

1 stop20h 56m

$978

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 6/1

9:30 am-5:59 pm

2 stops25h 29m

Seattle/Tacoma Intl

Wed 6/10

3:33 pm-6:55 am

1 stop22h 22m

$978

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 8/12

9:30 am-11:33 am

1 stop19h 03m

Seattle/Tacoma Intl

Sat 8/29

11:56 pm-7:00 am

2 stops38h 04m

$982

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 8/12

9:10 am-3:33 pm

1 stop23h 23m

Seattle/Tacoma Intl

Sat 8/29

5:22 pm-7:05 am

1 stop20h 43m

$1,015

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 5/10

9:15 am-3:05 pm

1 stop22h 50m

Seattle/Tacoma Intl

Wed 5/27

5:35 pm-6:50 am

1 stop20h 15m

$1,029
Quickest round-trip

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 5/12

9:10 am-1:01 pm

1 stop20h 51m

Seattle/Tacoma Intl

Wed 5/27

4:28 pm-7:05 am

1 stop21h 37m

$1,031

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 5/11

9:10 am-10:52 pm

1 stop30h 42m

Seattle/Tacoma Intl

Mon 5/25

6:14 pm-7:05 am

1 stop19h 51m

$1,031

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 5/23

8:45 pm-9:53 pm

1 stop18h 08m

Seattle/Tacoma Intl

Tue 5/26

8:50 pm-6:50 pm

1 stop29h 00m

$1,187

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 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.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Seattle

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

The best time to book flights from Sydney to Seattle is 38 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, August is the cheapest month in which you can book a flight from Sydney to Seattle (average of $889). Flying from Sydney to Seattle in July is currently the most expensive (average of $1,391). 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.

How much does it cost to fly round-trip from Sydney to Seattle?

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 April 28, 2026.
Read through reviews of airlines operating flights from Sydney to Seattle, such as Delta,United Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,464 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,464 reviews
Delta
7.9
Good
8,464 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,672 reviews
Delta
7.9
Good
8,464 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,974 reviews
Delta
7.9
Good
8,464 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Sydney to Seattle?

    A quick flight from Sydney to Seattle can take about 23h 25m. United Airlines provides one of the quickest options available for as low as $977. There are 7744 mi between Sydney and Seattle.

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

    Currently priced at $794, United Airlines will fly you from Sydney to Seattle and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Air Canada - these airlines can fly you to your destination from $802 and $828, respectively. United Airlines is 24% 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 United Airlines, with whom users have recently found tickets for as low as $379. However, be on the lookout for offers from Hawaiian Airlines and Air Canada, 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, August is the cheapest month in which you can book a flight from Sydney to Seattle (average of $889). Flying from Sydney to Seattle in July is currently the most expensive (average of $1,391). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Renton
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Sydney to Seattle

Discover the top 3 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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$794Average$1,075FlexibilityNo cancel feeOn-time69%
DeltaCheapest$802Average$1,138FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$828Average$1,054FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.