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Cheap flights from Sydney to Seattle from $906

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 28/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
22 May — 29 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 22 April 2026.

Tue 12/509:15
SYD
-
SEA
1 stop22h 50m
Delta
Mon 25/517:35
SEA
-
SYD
1 stop20h 15m
Delta
Deal found 21/4$1,368
Mon 20/409:15
SYD
-
SEA
1 stop28h 10m
Delta
Mon 27/411:40
SEA
-
SYD
1 stop26h 10m
Delta
Deal found 19/4$1,370
Tue 9/609:10
SYD
-
SEA
1 stop20h 46m
Qantas Airways
Wed 9/1214:10
SEA
-
SYD
1 stop21h 15m
Qantas Airways
Deal found 19/4$1,382
Fri 5/606:00
SYD
-
SEA
3 stops45h 06m
Multiple Airlines
Fri 12/611:03
SEA
-
SYD
2 stops42h 07m
Multiple Airlines
Deal found 21/4$1,392
Wed 10/617:50
SYD
-
SEA
1 stop21h 08m
Qantas Airways
Wed 24/614:40
SEA
-
SYD
1 stop23h 25m
Qantas Airways
Deal found 17/4$1,409
Mon 11/509:20
SYD
-
SEA
1 stop30h 20m
Air Canada
Thu 21/505:50
SEA
-
SYD
1 stop32h 30m
Air Canada
Deal found 21/4$1,422
Sun 17/509:10
SYD
-
SEA
1 stop30h 48m
Qantas Airways
Mon 1/618:14
SEA
-
SYD
1 stop19h 51m
Qantas Airways
Deal found 19/4$1,424
Sat 16/509:10
SYD
-
SEA
1 stop30h 48m
Qantas Airways
Sun 31/514:40
SEA
-
SYD
1 stop23h 25m
Qantas Airways
Deal found 18/4$1,426
Mon 1/609:10
SYD
-
SEA
1 stop29h 39m
Qantas Airways
Mon 8/617:00
SEA
-
SYD
1 stop21h 05m
Qantas Airways
Deal found 17/4$1,428
Fri 15/509:15
SYD
-
SEA
1 stop31h 40m
Delta
Sun 24/510:15
SEA
-
SYD
1 stop27h 35m
Delta
Deal found 21/4$1,438
Fri 1/509:15
SYD
-
SEA
1 stop28h 10m
Delta
Mon 1/617:35
SEA
-
SYD
1 stop20h 15m
Delta
Deal found 17/4$1,440

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 22 April 2026.

Round-trip from

$1,367

One-way from

$906

Popular in

July

Cheapest in

August

Average price

$1,529
Delta
  • Delta
  • 12/5-25/5
  • 2 total stops
  • 43h 05m total
  • Sydney to Seattle
Search Deals
28/4
  • 28/4
  • 2 total stops
  • 22h 25m total
  • Sydney to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($121 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($62 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 22 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

Wed 3/6

09:15-23:53

1 stop31h 38m

Seattle/Tacoma Intl

Wed 10/6

14:51-06:50

1 stop22h 59m

$1,370

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 28/5

17:50-21:07

1 stop20h 17m

Seattle/Tacoma Intl

Wed 17/6

18:10-07:05

1 stop19h 55m

$1,470

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 2/6

17:50-21:07

1 stop20h 17m

Seattle/Tacoma Intl

Wed 17/6

18:10-07:05

1 stop19h 55m

$1,470

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 23/5

09:20-14:20

1 stop22h 00m

Seattle/Tacoma Intl

Tue 26/5

14:55-07:20

1 stop23h 25m

$1,472

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 4/6

10:20-12:34

1 stop19h 14m

Seattle/Tacoma Intl

Sun 28/6

06:00-07:00

1 stop32h 00m

$1,590

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 13/6

20:45-23:59

1 stop20h 14m

Seattle/Tacoma Intl

Wed 17/6

21:10-18:50

1 stop28h 40m

$1,733
Fastest return journey

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 9/6

20:45-23:58

2 stops20h 13m

Seattle/Tacoma Intl

Fri 11/12

07:00-19:45

1 stop17h 45m

$1,981

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 13/7

09:15-22:00

2 stops29h 45m

Seattle/Tacoma Intl

Mon 27/7

13:30-06:50

2 stops24h 20m

$2,298

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 7/7

20:45-23:59

1 stop20h 14m

Seattle/Tacoma Intl

Tue 14/7

21:10-18:50

1 stop28h 40m

$2,395

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 7/7

09:15-20:27

1 stop28h 12m

Seattle/Tacoma Intl

Tue 14/7

07:15-06:50

2 stops30h 35m

$2,432

Flights are sorted by cheapest return flights first.

Deals found on 22/4

Showing 1-10 of 20 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 17 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, August is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,240). Flying from Sydney to Seattle in July is currently the most expensive (average of $1,941). 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 22 April 2026.
See what other customers who have flown with Hawaiian Airlines,Qantas Airways, andUnited Airlines 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.
Hawaiian Airlines
7.8
Good
2,837 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Crew

8.5

Boarding

8.0

Overall

7.8

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
Hawaiian Airlines
7.8
Good
2,837 reviews
Hawaiian Airlines
7.8
Good
2,837 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Crew

8.5

Boarding

8.0

Overall

7.8

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
Qantas Airways
7.5
Good
1,024 reviews
Hawaiian Airlines
7.8
Good
2,837 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Crew

8.5

Boarding

8.0

Overall

7.8

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
United Airlines
7.4
Good
9,625 reviews
Hawaiian Airlines
7.8
Good
2,837 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Crew

8.5

Boarding

8.0

Overall

7.8

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
American Airlines
7.1
Good
11,647 reviews
Hawaiian Airlines
7.8
Good
2,837 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Crew

8.5

Boarding

8.0

Overall

7.8

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
Air Canada
7.1
Good
10,952 reviews
Hawaiian Airlines
7.8
Good
2,837 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Crew

8.5

Boarding

8.0

Overall

7.8

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.

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, Qantas Airways, and Air Canada fly from Sydney to Seattle in about 20h 17m. The time it takes to get you to your destination can typically vary by up to 11h 21m. Airlines will cover a distance of 12463 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at $678, 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 $1,042 and $1,049, 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 $554. Users have also found prices from $599 and $707 on United Airlines and Qantas Airways, 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, August is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,240). Flying from Sydney to Seattle in July is currently the most expensive (average of $1,941). 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

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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 22 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 22 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$678Average$1,215FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,042Average$1,442FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AustraliaCheapest$1,049Average$2,010FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Hawaiian AirlinesCheapest$1,050Average$1,819FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapest$1,093Average$1,699FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapest$1,106Average$1,211FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,118Average$1,309FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,231Average$1,260FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
ANACheapest$1,280Average$1,564FlexibilityNo cancel feeOn-time80%
Search ANA flights
Asiana AirlinesCheapest$1,362Average$1,430FlexibilityNo 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.

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