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Cheap flights from Sydney to Seattle from $555

SYD — SEA
4 Oct — 11 Oct1
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

Tue 20/1014:15 -
2 stops22h 30m
Mon 26/1020:00 -
1 stop40h 25m
Deal found 1/9$1,241
Mon 5/1010:10 -
1 stop20h 57m
Sun 18/1006:00 -
2 stops32h 05m
Deal found 3/9$1,256
Mon 19/1010:10 -
1 stop20h 57m
Mon 26/1007:10 -
1 stop31h 50m
Deal found 4/9$1,284
Mon 5/1010:10 -
1 stop20h 57m
Sun 18/1016:37 -
1 stop21h 28m
Deal found 3/9$1,293
Mon 5/1010:15 -
2 stops31h 44m
Sun 18/1005:30 -
2 stops32h 20m
Deal found 3/9$1,307
Mon 19/1010:15 -
2 stops29h 50m
Mon 26/1013:30 -
2 stops24h 00m
Deal found 4/9$1,312
Sun 18/1010:10 -
1 stop20h 57m
Sun 25/1006:00 -
2 stops33h 00m
Deal found 3/9$1,325
Sun 18/1010:10 -
2 stops24h 38m
Sun 25/1014:26 -
2 stops24h 34m
Deal found 3/9$1,348

Find flight deals from Sydney to Seattle

Round-trip from

$1,241

One-way from

$555

Popular in

January

Cheapest in

March

Average price

$1,512
20/10-26/10
  • 20/10-26/10
  • 3 total stops
  • 62h 55m total
  • Sydney to Seattle
Search Deals
20/10-31/12
  • 20/10-31/12
  • 2 total stops
  • 22h 30m total
  • Sydney to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($115 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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 Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/10

10:15-20:27

1 stop28h 12m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$768

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 21/1

13:35-20:31

1 stop25h 56m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$771
Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 12/1

13:35-16:53

2 stops22h 18m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$982

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 9/11

14:00-19:28

2 stops24h 28m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$987

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 9/11

11:20-23:18

3 stops30h 58m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,014

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sun 28/2

20:05-18:30

3 stops41h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,062

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 11/1

11:20-11:30

2 stops43h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,066

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sun 28/2

11:20-21:56

1 stop29h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,067

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 5/10

10:15-23:59

2 stops31h 44m

Seattle/Tacoma Intl

Sun 18/10

05:30-07:50

2 stops32h 20m

$1,307

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 17/9

09:20-18:32

1 stop26h 12m

Seattle/Tacoma Intl

Sun 20/9

19:15-11:40

2 stops23h 25m

$1,652

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 17 resultsSorted by cheapest first
1
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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

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?

Booking 76 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, March is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,389). Flying from Sydney to Seattle in January is currently the most expensive (average of $1,700). 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?

Airfare is typical for this route at the moment.

Sydney to Seattle flights typically cost between $1,183 and $1,845 in October.
The cheapest return price found within the last 5 days was $1,241 on Multiple Airlines (20 Oct–26 Oct).

Reviews of airlines servicing Seattle

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
2,815 reviews
Check prices

Crew

8.5

Overall

7.8

Boarding

8.0

Comfort

7.7

Entertainment

7.1

Food

6.9

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
2,815 reviews
Hawaiian Airlines
7.8
Good
2,815 reviews
Check prices

Crew

8.5

Overall

7.8

Boarding

8.0

Comfort

7.7

Entertainment

7.1

Food

6.9

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
1,089 reviews
Hawaiian Airlines
7.8
Good
2,815 reviews
Check prices

Crew

8.5

Overall

7.8

Boarding

8.0

Comfort

7.7

Entertainment

7.1

Food

6.9

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
10,169 reviews
Hawaiian Airlines
7.8
Good
2,815 reviews
Check prices

Crew

8.5

Overall

7.8

Boarding

8.0

Comfort

7.7

Entertainment

7.1

Food

6.9

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
12,045 reviews
Hawaiian Airlines
7.8
Good
2,815 reviews
Check prices

Crew

8.5

Overall

7.8

Boarding

8.0

Comfort

7.7

Entertainment

7.1

Food

6.9

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
11,581 reviews
Hawaiian Airlines
7.8
Good
2,815 reviews
Check prices

Crew

8.5

Overall

7.8

Boarding

8.0

Comfort

7.7

Entertainment

7.1

Food

6.9

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

  • How long is the flight from Sydney to Seattle?

    Airlines like Delta, Air Canada, and United Airlines fly from Sydney to Seattle in about 23h 59m. The time it takes to get you to your destination can typically vary by up to 7h 45m. 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 $1,113, Air Canada will fly you from Sydney to Seattle and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Hawaiian Airlines and Delta - these airlines can fly you to your destination from $1,128 and $1,166, respectively. Users have found that Air Canada is 27% 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 $640. Users have also found prices from $685 and $694 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, March is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,389). Flying from Sydney to Seattle in January is currently the most expensive (average of $1,700). 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
Tukwila
Ocean Shores

Browse thousands of different options on Cheapflights for your next trip

Fly from Sydney to Seattle on these airlines

Air Canada flights from Sydney Kingsford Smith to Seattle/Tacoma Intl
Hawaiian Airlines flights from Sydney Kingsford Smith to Seattle/Tacoma Intl

Top 6 airlines flying from Sydney to Seattle

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,113Average$1,548FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Hawaiian AirlinesCheapest$1,128Average$1,805FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
DeltaCheapest$1,166Average$1,388FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Qantas AirwaysCheapest$1,180Average$1,429FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$1,183Average$1,510FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$1,226Average$1,338FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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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