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Cheap flights from Sydney to Seattle from $774

SYD — SEA
18 Oct — 25 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

Mon 5/1010:10 -
2 stops25h 23m
Sun 18/1011:44 -
2 stops26h 21m
Deal found 18/9$1,304
Mon 5/1010:15 -
2 stops22h 35m
Mon 9/1115:13 -
1 stop22h 17m
Deal found 18/9$1,314
Mon 5/1010:15 -
1 stop31h 35m
Sun 18/1009:45 -
1 stop28h 05m
Deal found 15/9$1,318
Mon 26/1009:40 -
2 stops25h 15m
Sat 7/1121:35 -
1 stop39h 55m
Deal found 14/9$1,323
Mon 5/1010:15 -
1 stop20h 12m
Wed 4/1112:30 -
1 stop25h 00m
Deal found 18/9$1,326
Tue 6/1010:15 -
2 stops22h 35m
Sun 8/1117:45 -
1 stop19h 45m
Deal found 18/9$1,333
Mon 5/1010:15 -
1 stop24h 29m
Sat 7/1121:35 -
1 stop39h 55m
Deal found 18/9$1,347
Mon 12/1010:10 -
1 stop20h 06m
Tue 27/1019:08 -
1 stop19h 52m
Deal found 13/9$1,350
Tue 6/1010:15 -
2 stops24h 40m
Sat 7/1121:35 -
1 stop39h 55m
Deal found 18/9$1,361
Thu 22/1010:10 -
1 stop20h 06m
Wed 28/1019:08 -
1 stop19h 52m
Deal found 14/9$1,364
Tue 20/1010:10 -
2 stops22h 59m
Tue 10/1107:10 -
1 stop30h 50m
Deal found 14/9$1,370
Mon 19/1011:20 -
1 stop18h 58m
Sun 8/1107:05 -
1 stop28h 55m
Deal found 14/9$1,375

Find flight deals from Sydney to Seattle

Round-trip from

$1,314

One-way from

$774

Popular in

December

Cheapest in

August

Average price

$1,650
Delta
  • Delta
  • 5/10-9/11
  • 2 total stops
  • 45h 11m total
  • Sydney to Seattle
Search Deals
Delta
  • Delta
  • 20/10-31/12
  • 1 total stop
  • 28h 12m total
  • Sydney to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($127 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

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

Thu 5/11

10:40-14:50

1 stop23h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$774

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

$774
Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 20/11

10:40-10:05

1 stop18h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$857

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 9/11

11:10-13:00

1 stop20h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$875

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 9/11

10:40-18:41

2 stops27h 01m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$879

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 5/11

11:50-20:56

3 stops52h 06m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,004

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 18/11

11:50-19:17

3 stops50h 27m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,010

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 15/10

10:30-14:53

3 stops46h 23m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,010

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 20/11

06:25-16:58

3 stops29h 33m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,034

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 16/10

10:30-23:26

3 stops30h 56m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,096

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 22 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,409). Flying from Sydney to Seattle in December is currently the most expensive (average of $1,759). 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 $1,195 and $2,053 in October.
The cheapest return price found within the last 5 days was $1,314 on Delta (5 Oct–9 Nov).

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
2,811 reviews
Check prices

Food

6.9

Comfort

7.7

Overall

7.8

Boarding

8.0

Crew

8.5

Entertainment

7.1

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
2,811 reviews
Hawaiian Airlines
7.8
Good
2,811 reviews
Check prices

Food

6.9

Comfort

7.7

Overall

7.8

Boarding

8.0

Crew

8.5

Entertainment

7.1

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
1,102 reviews
Hawaiian Airlines
7.8
Good
2,811 reviews
Check prices

Food

6.9

Comfort

7.7

Overall

7.8

Boarding

8.0

Crew

8.5

Entertainment

7.1

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
10,227 reviews
Hawaiian Airlines
7.8
Good
2,811 reviews
Check prices

Food

6.9

Comfort

7.7

Overall

7.8

Boarding

8.0

Crew

8.5

Entertainment

7.1

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
12,078 reviews
Hawaiian Airlines
7.8
Good
2,811 reviews
Check prices

Food

6.9

Comfort

7.7

Overall

7.8

Boarding

8.0

Crew

8.5

Entertainment

7.1

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
11,649 reviews
Hawaiian Airlines
7.8
Good
2,811 reviews
Check prices

Food

6.9

Comfort

7.7

Overall

7.8

Boarding

8.0

Crew

8.5

Entertainment

7.1

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 fly from Sydney to Seattle in about 22h 35m. 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 $1,152, Hawaiian Airlines will fly you from Sydney to Seattle and back. In addition to Hawaiian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from $1,164 and $1,196, respectively. Users have found that Hawaiian Airlines is 26% 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 $693. Users have also found prices from $701 and $710 on Hawaiian Airlines and United 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, August is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,409). Flying from Sydney to Seattle in December is currently the most expensive (average of $1,759). 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
Hawaiian AirlinesCheapest$1,152Average$1,824FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Air CanadaCheapest$1,164Average$1,577FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,196Average$1,526FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$1,239Average$1,409FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qantas AirwaysCheapest$1,259Average$1,444FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
DeltaCheapest$1,354Average$1,403FlexibilityNo cancel feeOn-timeN/A
Search Delta 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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