Find flights
When to book
Airlines
FAQs

Cheap flights from Sydney to Seattle from $692

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Seattle

Enter your travel dates to find the best prices.

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 17 April 2026.

Tue 5/509:15
SYD
-
SEA
1 stop22h 36m
Delta
Mon 11/519:55
SEA
-
SYD
1 stop41h 55m
Delta
Deal found 14/4$1,348
Tue 12/509:15
SYD
-
SEA
1 stop24h 38m
Delta
Tue 19/510:15
SEA
-
SYD
1 stop27h 35m
Delta
Deal found 14/4$1,358
Tue 12/513:15
SYD
-
SEA
2 stops22h 25m
Multiple Airlines
Wed 27/517:59
SEA
-
SYD
2 stops24h 51m
Multiple Airlines
Deal found 14/4$1,404
Wed 20/513:20
SYD
-
SEA
2 stops21h 56m
Multiple Airlines
Sun 7/616:28
SEA
-
SYD
2 stops26h 22m
Multiple Airlines
Deal found 12/4$1,407
Sat 2/509:15
SYD
-
SEA
2 stops20h 10m
Delta
Sun 10/513:25
SEA
-
SYD
2 stops24h 25m
Delta
Deal found 14/4$1,416
Thu 14/509:10
SYD
-
SEA
1 stop20h 46m
Qantas Airways
Fri 29/517:28
SEA
-
SYD
1 stop21h 02m
Qantas Airways
Deal found 16/4$1,423
Fri 1/509:15
SYD
-
SEA
1 stop26h 11m
Delta
Mon 1/607:25
SEA
-
SYD
1 stop30h 25m
Delta
Deal found 15/4$1,428
Fri 29/509:30
SYD
-
SEA
1 stop22h 25m
Asiana Airlines
Thu 4/600:55
SEA
-
SYD
1 stop37h 35m
Asiana Airlines
Deal found 13/4$1,439
Wed 12/813:15
SYD
-
SEA
2 stops22h 56m
Multiple Airlines
Sun 16/818:10
SEA
-
SYD
2 stops24h 40m
Multiple Airlines
Deal found 12/4$1,444

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 17 April 2026.

Round-trip from

$1,348

One-way from

$692

Popular in

July

Cheapest in

September

Average price

$1,527
Delta
  • Delta
  • 5/5-12/5
  • 4 total stops
  • 49h 31m total
  • Sydney to Seattle
Search Deals
31/8
  • 31/8
  • 3 total stops
  • 27h 16m total
  • Sydney to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($125 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($63 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 17 April 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 return flight

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 12/5

09:15-13:00

2 stops20h 45m

Seattle/Tacoma Intl

Tue 19/5

07:15-06:50

2 stops30h 35m

$1,368
Fastest return journey

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 6/5

09:15-12:25

2 stops20h 10m

Seattle/Tacoma Intl

Sat 16/5

07:15-06:50

2 stops30h 35m

$1,428

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 1/5

09:15-23:51

1 stop31h 36m

Seattle/Tacoma Intl

Mon 1/6

17:35-06:50

1 stop20h 15m

$1,433

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 17/5

09:10-22:58

1 stop30h 48m

Seattle/Tacoma Intl

Tue 2/6

17:28-07:05

1 stop20h 37m

$1,493

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 6/5

10:20-12:25

1 stop19h 05m

Seattle/Tacoma Intl

Tue 12/5

23:53-07:00

2 stops38h 07m

$1,534

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 30/4

09:30-19:44

2 stops27h 14m

Seattle/Tacoma Intl

Sat 23/5

23:52-06:55

2 stops38h 03m

$1,545

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 3/6

10:20-12:34

1 stop19h 14m

Seattle/Tacoma Intl

Sun 28/6

06:00-07:00

1 stop32h 00m

$1,577
Cheapest one-way

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 29/4

13:15-18:40

2 stops22h 25m

$926

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 10/6

09:15-22:19

1 stop30h 04m

$938

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 29/4

09:10-19:53

1 stop27h 43m

$938

Flights are sorted by cheapest return flights first.

Deals found on 12/4

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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 return 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?

Use this chart to determine the optimal time to book a return flight from Sydney to Seattle. Price data was last updated on 10 April 2026.

Booking 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,221). Flying from Sydney to Seattle in July is currently the most expensive (average of $1,939). 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 for a return flight 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 17 April 2026.
See what other customers who have flown with Delta,Hawaiian Airlines, andQantas Airways from Sydney to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,409 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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
8,409 reviews
Delta
7.9
Good
8,409 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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.
Hawaiian Airlines
7.8
Good
2,839 reviews
Delta
7.9
Good
8,409 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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.
Qantas Airways
7.5
Good
1,019 reviews
Delta
7.9
Good
8,409 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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
9,601 reviews
Delta
7.9
Good
8,409 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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
10,932 reviews
Delta
7.9
Good
8,409 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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?

    Airlines like Delta fly from Sydney to Seattle in about 20h 45m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 12463 km.

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

    Currently priced at $677, Delta will fly you from Sydney to Seattle and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Virgin Australia - these airlines can fly you to your destination from $1,040 and $1,048, respectively. Users have found that Delta is 53% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $553. Users have also found prices from $598 and $695 on United Airlines and Hawaiian Airlines, respectively.

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

    Of the flights from Sydney to Seattle that have stopovers, most of them stop in Vancouver.

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

    The least popular stopover on flights from Sydney to Seattle is San Francisco.

  • 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 holiday 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, September is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,221). Flying from Sydney to Seattle in July is currently the most expensive (average of $1,939). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Ocean Shores

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.

Fly from Sydney to Seattle on these airlines

Choose from the following airlines for your flight from Sydney to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 17 April 2026.
Air Canada flights from Sydney Kingsford Smith to Seattle/Tacoma Intl
Hawaiian Airlines flights from Sydney Kingsford Smith to Seattle/Tacoma Intl

Top 10 airlines flying from Sydney to Seattle

Discover the top 10 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 647,157 searches. Data last updated 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$677Average$1,938FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,040Average$1,407FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AustraliaCheapest$1,048Average$2,007FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Alaska AirlinesCheapest$1,091Average$1,696FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapest$1,107Average$1,298FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,116Average$1,301FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Hawaiian AirlinesCheapest$1,131Average$1,801FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
American AirlinesCheapest$1,229Average$1,258FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
ANACheapest$1,278Average$1,561FlexibilityNo cancel feeOn-time80%
Search ANA flights
Asiana AirlinesCheapest$1,360Average$1,431FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sydney to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Sydney.

Can Cheapflights find flights from Sydney to Seattle with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Seattle flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Sydney to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Sydney to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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.